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Single Mode Fiber
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High NA Single Mode Fiber

Photosensitive Fiber
Multimode Fiber: 0.22 NA
Multimode Fiber: 0.37 NA / 0.39 NA

Multimode Fiber: 0.48 NA
Graded Index Multimode Fiber
Graded-Index Plastic Fiber

Photonic Crystal Fiber (PCF)
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Products Home >> Optical Fiber >> Ultra High NA Single Mode Fiber

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Ultra High NA Single Mode Fiber


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For Fluoride and Tellurite Fiber Splicing with up to 0.35NA

Fluoride optical fibers for amplifiers and lasers at 1.3 and 1.5 μm are becoming important components for optical fiber communications systems. Efficient operation of fluoride fibers requires a very high numerical aperture (typically >0.3), which unfortunately leads to increased coupling losses (insertion loss) and low return loss when connected to standard silica fibers. This coupling loss decreases the overall gain and seriously degrades the noise figure. By coupling UHNA series fibers, which offers up to 0.35NA between the fluoride and standard silica fibers, these losses can be dramatically reduced.

Applications

Fluoride and Other Non-Silica Fiber Splicing
Planar Waveguide Coupling
Fiber Tails for High NA Sources

Item #	UHNA1	UHNA3	UHNA4
Wavelength Range	1100 - 1600 nm	960 - 1600 nm	1100 - 1600 nm
Mode Field Diamter	4.0 µm @ 1310 nm	3.3 µm @ 1310 nm	3.3 µm @ 1310 nm
Cladding	125 ± 1.5 µm	125 ± 1.5 µm	125 ± 1.5 µm
Coating	250 ± 20 µm	250 ± 20 µm	250 ± 20 µm
2nd Mode Cutoff Wavelength	1000 ± 50 nm	900 ± 50 nm	1050 ± 50 nm
Core Composition	SiO₂/GeO₂	SiO₂/GeO₂	SiO₂/GeO₂
Typical Attenuation @ 1550 nm	<20 dB/km	<20 dB/km	<20 dB/km
NA	0.28	0.35	0.35
Stripper Tool	T06S13	T06S13	T06S13

Custom Patch Cable Service with Same Day Shipment

Thorlabs stocks the largest selection of single mode and multimode optical fibers in the photonics industry. Simply use the form below to receive a quote on a custom patch cable. Once filling out the quote request, a member of our Technical Support team will e-mail you a quote with a lead time.

Custom patch cables can be shipped the same day they are ordered provided the following criteria* are met:

Order Does Not Exceed 5 Cables
Each Cable Does Not Exceed 20 m in Length
Order is Placed Before 12:00 pm Eastern Standard Time

*Other restrictions may apply. Not available with PCF or PM fibers.

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Custom Patch Cable Worksheet:
Fiber Type:
Protective Tubing:	FT900SM \| FT030 (Multimode Standard) \| FT030-Y (Single mode Standard) FT030-BLUE (PM Standard) \| FT038 \| None
Connector (End 1):	Flat Cleave \| FC/PC \| FC/APC \| SMA \| ST \| SC \| LC \| None
Connector (End 2):	Flat Cleave \| FC/PC \| FC/APC \| SMA \| ST \| SC \| LC \| None
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