Create an Account | Log In

( 0)

Close [X]

Your Shopping Cart is Empty

$ Dollar ▼

Close [X]

Select your Currency

€ Euro

£ GBPound

SEK Krona

Products

Rapid Order

Services

The Company

Partners

My Thorlabs

Additional Product Families In this Group

Free-Space Optical Isolators

Fiber Optic Isolators

Fiber Isolator for Broadband SLDs

OEM and Custom Optical Isolators

Products Home >> Optical Isolators >> OFR Fiber Optic Isolators

Print Friendly

OFR Fiber Optic Isolators


	Related Products

Standard	Custom
In-Stock Isolators	Build-to-Order	Specialty
• Popular Wavelengths from 780 to 2050 nm • Typical Power Ratings (250 mW to 30 W) • Purchase From Stock (See Below) • Next-Day Delivery Options	• Any Wavelength from <780 nm to >2050 nm • Increased Power Ratings Available • Short Lead Times • Price Structure Similar to Stocked Isolators	• Non-Standard Wavelengths • Power Handeling Limit of 50 W Fiber to Fiber and Increasing • Customize Features and Design Parameters • OFR Design: Service Backed by Experience that Produces Quality Results

Features

Maximum Power Ratings up to 50 W
Isolation Values from 30 to 47 dB Depending on Model
Wavelength Ranges from 780 to 2050 nm
Polarization Independent and Dependent Versions
Available with or without Connectors

Fiber Types

Polarization-Independent Isolators Use SM FIber
Polarization-Dependent Isolators Use PM FIber
High Power Fiber Isolators are Built with a Specialized Fiber End Face Process to Increase the Power Handling Capability

Fiber isolators protect laser sources from back reflections and signals that can cause instabilities and damage to fiber coupled laser sources. An isolator is an optical device that allows light propogating in the forward dirction to be transmitted while absorbing or displacing light propogating in the reverse directions. Fiber isolators are available in both polarization-dependent and polarization-independent models throughout the 780 to 1550 nm wavelength range.

When choosing an isolator, operating power and wavelength are the two most important factors. Isolators for use below 3 W and with wavelengths longer than 1250 nm use a Bismuth Iron Garnet (BIG) rotator. For shorter wavelengths and the same power levels, Terbium-Gallium Garnet (TGG) rotators are typically employed. These rotators have a much lower Verdet constant than BIG rotators and require the use of magnets taht are orders of magnitude larger. High-power isolators, which are designed for maximum powers of 50 W (depending on model), use non-absorptive crystal polarizers as well as crystal Faraday rotators. Thorlabs' Faraday Rotator crystal of choice is TGG (terbium-gallium-garnet).

Note: Units with PM fiber use PANDA type PM fiber with a core-cladding-coating size of 7/125/400 µm. The rest of our isolators have an outer coating on the fiber of 250 µm.

New Fiber Isolator Type

The IOK-1064-LMA25-CRED is a fiber-to-free space isolator for high-power applications in the 1064 nm range. Utilizing our experience in high-power fiber coupling, this isolator has been fabricated to withstand CW laser powers up to 50 W. This isolator has the added benefit that a red aiming laser with transmission in the 633 to 690 nm range can be coupled into the LMA25 fiber prior to entering the isolator. This aiming feature is extremely useful when working with a free-space IR beam. Mounting holes on the output facet allow components such as beam expanders to be attached. Unless a beam expander is attached, a Ø1 mm collimated beam exits the isolator centered on the body with a divergence that is less than 1.5 mrad.

Orange fields are highlighting >30 W versions.

Item #	Wavelength^a	Max Power	Isolation	Insertion Loss	PDL	PER^b	Return Loss	Fiber
250 - 300 mW Polarization-Independent Fiber Isolators
IO-H-1064	1064 +20/-4 nm	250 mW	≥33 dB^c	1.4 - 2.0 dB	≤0.20 dB	−	>55 dB	HI1060
IO-H-1310	1310 ± 15 nm	300 mW	35 - 40 dB	0.3 - 0.7 dB	≤0.1 dB	−	>55 dB	SMF-28e
IO-H-1550	1550 ± 15 nm	300 mW	35 - 40 dB	0.3 - 0.7 dB	≤0.1 dB	−	>55 dB	SMF-28e
2 - 5 W Polarization-Independent Fiber Isolators
IO-F-780	780 ± 10 nm	2 W (CW)	30 - 38 dB	1.0 - 1.6 dB	≤0.25 dB	−	>50 dB	780HP
IO-F-850	850 ± 10 nm	2 W (CW)	30 - 38 dB	1.0 - 1.6 dB	≤0.25 dB	−	>50 dB	SM800
IO-F-980	980 ± 10 nm	2 W (CW)	33 - 38 dB	0.7 - 1.2 dB	≤0.2 dB	−	>50 dB	HI1060
IO-F-1064	1064 ± 10 nm	3 W (CW)	33 - 38 dB	0.7 - 1.3 dB	≤0.15 dB	−	>50 dB	HI1060
IO-F-1550	1550 ± 20 nm	5 W (CW)	32 - 38 dB	0.4 - 1.0 dB	≤0.2 dB	−	>55 dB	SMF-28e
3 - 5 W Polarization-Dependent Fiber Isolators
IO-J-980	980 ± 10 nm	3 W (CW)	30 - 38 dB	0.8 - 1.6 dB	−	>20 dB	>50 dB	PM 980/1064
IO-J-1064	1064 ± 10 nm	3 W (CW)	32 - 38 dB	0.6 - 1.3 dB	−	>20 dB	>50 dB	PM 980/1064
IOT-J-1064-95B	1064 ± 4 nm	3 W (CW)	42 - 47 dB	1.0 - 1.7 dB	−	>20 dB	>50 dB	SM98-PS-U40A-H
IO-J-1550	1550 ± 20 nm	5 W (CW)	32 - 38 dB	0.4 - 1.0 dB	−	>20 dB	>55 dB	PM 1500
IO-L-2000	2000 ± 100 nm	5 W (CW)	≤25 dB	2.0 - 3.0 dB	≤0.20 dB	−	>50 dB	PM15-U40A
5 - 10 W Polarization-Independent Fiber Isolators
IO-K-1064	1064 ± 10 nm	10 W (CW)	30 - 36 dB	0.8 - 1.5 dB	≤0.25 dB	−	>50 dB	HI1060
IO-K-1550	1550 ± 20 nm	10 W (CW)	30 - 38 dB	0.8 - 1.5 dB	≤0.25 dB	−	>55 dB	SMF-28e
IO-K-2000	2000 ± 100 nm	5 W (CW)	≤25 dB	2.0 - 3.0 dB	≤0.20 dB	−	>50 dB	SM2000
30 W Polarization-Independent Fiber Isolators
IO-K-1064-ELY	1064 ± 10 nm	30 W (CW)	30 - 38 dB	<0.6 dB	-	−	>50 dB	HI1060
IOK-1064-LMA25-CRED	1064 +16/-14 nm	50 W (CW)	>30 dB	<0.45 dB	-	−	>50 dB	LMA25
a) For specified isolation, the IL specification is valid over double the wavelength range listed b) Polarization Extinction Ratio c) Specified at 1064 nm

OEM and Non-standard Isolators

In an effort to provide the best possible service to our customers we have made a commitment to ship our most popular free-space isolator and fiber isolator models from stock. Currently we offer more than 50 isolators models with same day shipping. We also offer isolators with different apertures, wavelengths, package sizes, and polarizers. These non-stock units are usually priced the same as a similar stock units with only a 2 to 3 week lead time.

Thorlabs has many years of experience working with OEM customers and we are able to tailor an isolator to meet specific design requirements that challenge other manufacturers. In addition to customizing our isolators, we also offer various application services. Below is a sample list of the services we can offer.

OEM Application Services

Direct Integration to Laser Head Assemblies
Combination Isolator and Fiber Coupling Units
Minimum Footprint Packages
Filter Integration
Feedback Monitoring
Private Labeling

Free-Space Isolators

We are able to provide a wide range of flexibility in manufacturing non-stock free-space isolators. Almost any combination of specifications from our standard product line can be made to suit our customers needs. The table below shows the range of specification we can cover.

Parameter	Range
Wavelength Range	From 248 nm to 10 µm
Apertures Sizes	Up to Ø15 mm
Polarization Dependance	Dependent or Independent
Max Power	Up to 2 GW/cm²

We also can offer narrow and broadband performance options. Our housing size is very dependent on the desired power and aperture size desired, so please include a note in the quote form below if you have special requirements.

Fiber Isolators

The fiber isolator market is a rapidly changing field. Thorlabs is uniquely positioned to draw on experience in classical optics, fiber coupling, and isolators to bring a total solution to the fiber-isolator market.

We are able to provide the flexible designs covering a wide range of specifications. We are focusing our design efforts in increasing the maximum power of our fiber isolators in the 1064 nm range. We are also able to offer models with integrated ASE filters and taps. The table below highlights the parameter ranges we are able to offer.

Parameter	Range
Wavelength Range	From 780 nm to 1580 nm
Polarization Dependance	Dependent or Independent
Max Power	10 W
Max Power for 1030 to 1080 nm	30 W

The fiber used is often the limiting factor in determining the maximum power the isolator can handle. For the OEM, research, and Government markets we have experience working with standard single mode, multimode, polarization maintaining fibers (PM); single, double and triple clad fibers; as well as speciality fibers like: 10 to 30 µm LMA fibers and PM LMA fibers.

Company Information

Thorlabs acquired OFR in January of 2007. OFR was a leader in the isolator market for over 20 years when Thorlabs acquired it. In an effort to provide the best possible service to our customers, we have made a commitment to ship our most popular free-space and fiber isolator models from stock. There are now more than 50 isolator models available with same day shipping.

Please contact us at 973-228-4480 for more information. If you would like a quote a non-stock isolator, please fill out the form below and a member of our staff will be in contact with you. We are ready to assist you in selecting a product for you application.

Please use the Non-Stock Isolator web form below to request a quotation for non-stock isolators.

Customer Information:
Name:
Address (1):
Address (2):
City:
State:
Province:
Zip Code:
Country:
Company:
Phone:
Fax:
Email:
Security Code:
	Please click here if you cannot read the security image
This code is to prevent automated spamming of our website. Thank you for your understanding.

Non-Stock Isolator Worksheet:

Please select your input type: Free-Space Input | Fiber Input

Free-Space Input
Wavelength or Wavelength Range (nm):
Power (W):
Max 1/e² Beam Diameter (mm):
Isolation (dB):
% Transmission:
Notes:
Required Fields

Fiber Input
Wavelength or Wavelength Range (nm):
Power (W):
Polarization Sensitivity:	Dependent \| Independent
Isolation (dB):
% Transmission:
Fiber:
Fiber Connector:	FC/PC \| FC/APC \| Other
Output:	Fiber \| Free-Space
Notes:
Required Fields

Please Give Us Your Feedback

Email		Feedback On
(Optional)
Contact Me:
Your email address will NOT be displayed.

Please type the following key into the field to submit this form:
Click Here if you can not read the security code.
This code is to prevent automated spamming of our site
Thank you for your understanding.

Would this product be useful to you? Little Use 1 2 3 4Very Useful

Enter Comments Below:

Characters remaining 8000

Posted Comments:
Poster: Thorlabs	Posted Date: 2010-08-17 17:43:33.0
Response from Javier at Thorlabs to last poster: Thank you for your feedback. The typical fiber lengths range from 1.5 m to 2.0 m. We will update this information on the web.

Poster:	Posted Date: 2010-08-17 01:42:04.0
Do you have any reason to hide fiber length for your inline isolators? typically 1m, right?

Poster: jens	Posted Date: 2009-06-11 08:46:52.0
A reply from Jens at Thorlabs: Mike, this is indeed confusing. The data sheet for the PM980 should have been included. I will have the correct data sheet send to you.

Poster: jens	Posted Date: 2009-05-13 18:44:55.0
A response from Jens at Thorlabs: Yes, the connector style is indeed FC/APC, the FC is often skipped in the description. I tried to find the drop down menu you mentioned but could only think of the shortcuts which come up when typing in a search. Is that where you were missing the part? I just tried and the item shows up here, so not sure if you were referring to another place on the web page. Thanks a lot.

Poster: bmcpherson	Posted Date: 2009-05-13 18:36:06.0
IO-H-1550APC was not listed in the drop down menu. Is the APC connector an FC/APC style connector? Thanks

Poster: Laurie	Posted Date: 2008-10-17 08:57:05.0
Response from Laurie at Thorlabs to hiepvv: Thank you for your interest in our isolators. I will forward your request to our sales department. Someone should be contacting you shortly to provide the requested quotation.

Poster: hiepvv	Posted Date: 2008-10-17 01:50:58.0
Dear Sir. I would like to purchase the optical isolator 1550nm.(Type:IO-H-1550 Qty:2pcs) Could you please send me the official quotaion. Thank and best regards Vo Van Hiep

50 W Polarization-Independent Fiber to Free-Space Isolator with Red Aiming Laser Pass Through

	IOK-1064-LMA25-CRED
	Wavelength Range: 1050 - 1080 nm Isolation: >30 dB Max Power: 50 W CW, 10 kW Peak 25 W Avg Insertion Loss: <0.45 dB Fiber: LMA25 Aiming Laser Wavelength: 633 - 690 nm

Order

QTY

Part Number - Imperial

Price

Available/Ships

IOK-1064-LMA25-CRED - Fiber Isolator, 1064 nm, 50 W, Pol Ind, Fiber to Free-Space, Red Aiming Laser - Customer Inspired

$1,850.00

Lead Time

30 W Polarization-Independent Fiber to Free-Space Isolator

	IO-K-1064-ELY
	Wavelength Range: 1050 - 1080 nm Isolation: 30 - 38 dB Max Power: 30 W Insertion Loss: 0.6 dB Fiber: HI1060 Collimated Output Beam Diameter: 3 mm

Order

QTY

Part Number - Imperial

Price

Available/Ships

IO-K-1064-ELY - Fiber Isolator, 1064 nm, 30 W, Pol Ind, Fiber to 3 mm Collimated

$2,670.00

Today

5 - 10 W Polarization-Independent Fiber to Fiber Isolators

	IO-K-1064		IO-K-1550
	Wavelength Range: 1050 - 1075 nm Isolation: 30 - 36 dB Max Power: 10 W Insertion Loss: 1.0 - 1.5 dB Fiber: HI1060		Wavelength Range: 1530 - 1570 nm Isolation: 30 - 38 dB Max Power: 10 W Insertion Loss: 0.8 - 1.5 dB Fiber: SMF-28e

	IO-K-2000
	Wavelength Range: 2000 - 2100 nm Isolation: >25 dB Max Power: 5 W CW, <2 kW Peak Insertion Loss: 2.0 - 3.0 dB Fiber: SM2000

Order

QTY

Part Number - Imperial

Price

Available/Ships

IO-K-1064 - Reduced Price! Fiber Isolator, 1064 nm, 10W, Pol Ind, Fiber to Fiber

$1,925.00

Today

IO-K-1064-CO - Fiber Isolator, 1064 nm, 10W, Pol Ind, Fiber to 1 mm Collimated

$2,000.00

Today

IO-K-1550 - Fiber Isolator, 1550 nm, 10W, Pol Ind, Fiber to Fiber

$1,950.00

Today

IO-K-2000 - Fiber Isolator, 2000 nm, 5W, Pol Ind, Fiber to Fiber - Customer Inspired

$5,250.00

Lead Time

3 - 5 W Polarization-Dependent Fiber to Fiber Isolators

IO-J-980

IO-J-1064

Wavelength Range: 970 - 990 nm
Isolation: 30 - 38 dB
Max Power: 3 W
Insertion Loss: 0.8 - 1.4 dB
Fiber: PM 980

Wavelength Range: 1054 - 1074 nm
Isolation: 32 - 38 dB
Max Power: 3 W
Insertion Loss: 0.6 - 1.3 dB
Fiber: PM 980/1064

IO-J-1550

Click to Zoom

IOT-J-1064-95B

Wavelength Range: 1540 - 1560 nm
Isolation: 32 - 38 dB
Max Power: 5 W
Insertion Loss: 0.4 - 1.0 dB
Fiber: PM 1500

Wavelength Range: 1060-1068 nm
Isolation: 42-47 dB
Max Power: 3 W CW
Insertion Loss: 1.0- 1.7 dB
Fiber: Panda SM98-PS-U40A-H

	IO-L-2000
	Wavelength Range: 2000 - 2100 nm Isolation: >25 dB Max Power: 5 W CW, <2 kW Peak Insertion Loss: 2.0 - 3.0 dB Fiber: PM15-U40A

Order

QTY

Part Number - Imperial

Price

Available/Ships

IO-J-980 - Reduced Price! Fiber Isolator, 980 nm, HP, Pol Depd

$1,935.00

Today

IO-J-980APC - Reduced Price! Fiber Isolator, 980 nm, HP, Pol Depd, APC Connector

$2,035.00

Today

IO-J-1064 - Reduced Price! Fiber Isolator, 1064 nm, HP, Pol Depd

$1,935.00

Today

IO-J-1064APC - Reduced Price! Fiber Isolator, 1064 nm, HP, Pol Depd, APC Connector

$2,035.00

Today

IO-J-1550 - Reduced Price! Fiber Isolator, 1550 nm, HP, Pol Depd

$1,425.00

Today

IO-J-1550APC - Reduced Price! Fiber Isolator, 1550 nm, HP, Pol Depd, APC Connector

$1,525.00

Today

IOT-J-1064-95B - Fiber Isolator, 1064 nm, HP, Dual Stage, Pol Depd - Customer Inspired

$2,650.00

Today

IO-L-2000 - Fiber Isolator, 2000 nm, 5W, Pol Depd, Fiber to Fiber - Customer Inspired

$5,450.00

Lead Time

2 - 5 W Polarization-Independent Fiber to Fiber Isolators

	IO-F-780		IO-F-850
	Wavelength Range: 770 - 790 nm Isolation: 30 - 38 dB Max Power: 2 W Insertion Loss: 1.0 - 1.6 dB Fiber:780HP		Wavelength Range: 840 - 860nm Isolation: 30 - 38 dB Max Power: 2 W Insertion Loss: 1.0 - 1.6 dB Fiber:780HP
	IO-F-980		IO-F-1064
	Wavelength Range: 970 - 990 nm Isolation: 33 - 38 dB Max Power: 2 W CW Insertion Loss: 0.7 - 1.2 dB Fiber: HI1060		Wavelength Range: 1054 - 1074 nm Isolation: 33 - 38 dB Max Power: 3 W CW Insertion Loss: 0.7 - 1.3 dB Fiber: HI1060

IO-F-1550

Wavelength Range: 1530 - 1570 nm
Isolation: 32 - 38 dB
Max Power: 5 W CW
Insertion Loss: 0.4 - 1.0 dB
Fiber: SMF-28e

Order

QTY

Part Number - Imperial

Price

Available/Ships

IO-F-780 - Reduced Price! Fiber Isolator, 780 nm, HP, Pol Ind

$1,600.00

Today

IO-F-780APC - Reduced Price! Fiber Isolator, 780 nm, HP, Pol Ind, APC Connector

$1,640.00

3-5 Days

IO-F-850 - Fiber Isolator, 850 nm, HP, Pol Ind

$1,600.00

Today

IO-F-850APC - Fiber Isolator, 850 nm, HP, Pol Ind, APC Connector

$1,640.00

3-5 Days

IO-F-980 - Reduced Price! Fiber Isolator, 980 nm, HP, Pol Ind

$1,470.00

Today

IO-F-980APC - Reduced Price! Fiber Isolator, 980 nm, HP, Pol Ind, APC Connector

$1,510.00

3-5 Days

IO-F-1064 - Reduced Price! Fiber Isolator, 1064 nm, HP, Pol Ind

$1,470.00

Today

IO-F-1064APC - Reduced Price! Fiber Isolator, 1064 nm, HP, Pol Ind, APC Connector

$1,510.00

Today

IO-F-1550 - Reduced Price! Fiber Isolator, 1550 nm, HP, Pol Ind

$1,250.00

Today

IO-F-1550APC - Reduced Price! Fiber Isolator, 1550 nm, HP, Pol Ind, APC Connector

$1,290.00

Today

250 - 300 mW Polarization-Independent Fiber to Fiber Isolators

	IO-H-1064		IO-H-1310
	Wavelength Range: 1060 - 1084 nm Isolation: 33 dB @ 1064 nm Max Power: 250 mW Insertion Loss: 1.4-2.0 dB Fiber: HI1060		Wavelength Range: 1290 - 1330 nm Isolation: 35 - 40 dB Max Power: 300 mW Insertion Loss: 0.3 - 0.7 dB Fiber: SMF-28e

	IO-H-1550
	Wavelength Range: 1530 - 1570 nm Isolation: 35 - 40 dB Max Power: 300 mW Insertion Loss: 0.3 - 0.7 dB Fiber: SMF-28e

Order

QTY

Part Number - Imperial

Price

Available/Ships

IO-H-1064 - Fiber Isolator, 1064 nm, LP, Pol Ind

$1,450.00

Today

IO-H-1064APC - Fiber Isolator, 1064 nm, LP, Pol Ind, APC Connector

$1,490.00

Today

IO-H-1310 - Fiber Isolator, 1310 nm, LP, Pol Ind

$160.00

Today

IO-H-1310APC - Fiber Isolator, 1310 nm, LP, Pol Ind, APC Connector

$199.00

Today

IO-H-1310FC - Fiber Isolator, 1310 nm, Low Power, FC/PC Connector

$180.00

Today

IO-H-1550 - Fiber Isolator, 1550 nm, LP, Pol Ind

$160.00

Today

IO-H-1550APC - Fiber Isolator, 1550 nm, LP, Pol Ind, APC Connector

$199.00

Today

IO-H-1550FC - Fiber Isolator, 1550 nm, Low Power, FC/PC Connector

$180.00

Today

Author: ikabert Last Updated: May 27, 2009


Log in \| My Account \| Contact Us \| Privacy Policy \| Home \| Site Index
Copyright © 1999 - 2010 Thorlabs

Sales: 1-973-579-7227 \| Support: 1-973-300-3000