Booster Optical Amplifiers (BOAs), 1210 nm

  • Polarization Dependent Booster Optical Amplifiers (BOAs)
  • SM or PM Fiber-Pigtailed Butterfly Package
  • 1210 nm Operating Wavelength


BOA with PM Fiber and FC/APC Connectors, Closeup of Butterfly Package Shown


BOA with SM Fiber and FC/APC Connectors

FC/APC Connectors

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  • Boosting Laser Transmitters
  • Amplifying Widely Tunable Lasers
  • 1210 nm Optical Preamplifier
  • Amplifying Polarized Signals
The center wavelength of a BOA can be readily tailored for specific applications. It is quite common to adjust the BOA wavelength spectrum to match the specific laser source. Please contact us if you have custom wavelength requirements for pilot-projects or OEM applications.
Internal Diagram
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When current is applied across the ridge waveguide, excited state electrons are stimulated by input light, leading to photon replication and signal gain.


  • Polarization Dependent: Amplifies One Polarization State
  • 1.5 m Long, SM or PM Fiber Pigtails with FC/APC Connectors
  • Small Signal Gain: 20.5 dB (Typical)
  • Saturation Output Power: 23.5 dBm (Typical)
  • 3 dB Bandwidth: 82 nm (Typical)
  • Each End Face of the Semiconductor is AR Coated (R < 0.1%) to Prevent Lasing

Booster Optical Amplifiers (BOAs) are single-pass, traveling-wave amplifiers that perform well with both monochromatic and multi-wavelength signals. Since BOAs only amplify one state of polarization, they are best suited for applications where the input polarization of the light is known. Each BOA consists of a highly efficient InP Quantum Well (QW) layer structure, which is designed for amplifying polarized optical signals in the 1210 nm band and is also an ideal gain medium for implementing wide-bandwidth tunable lasers.

As seen in the schematic to the right, the input and output of the amplifier are coupled to the active layer of the ridge waveguide on the optical amplifier chip. The device is contained in a standard 14-pin butterfly package, with either single mode or polarization-maintaining fiber pigtails that are terminated with FC/APC connectors. The BOA1210 uses single mode HI1060 fiber, while the BOA1210P uses polarization-maintaining PM980-XP fiber with the connector key aligned to the slow axis. An integrated thermoelectric cooler (TEC) and thermistor allow these BOAs to be temperature controlled, thus stabilizing the gain and the spectrum.

For additional details concerning the construction and operating parameters of our BOAs, please see the Optical Amplifiers tab.

Recommended Driver
The ITC4005 LD/TEC and CLD1015 butterfly LD/TEC controllers are recommended to control these amplifiers. These LD/TEC controller and mount combinations offer full control via a front control panel or touch screen. When operating these optical amplifiers with the CLD1015, the orientation for type 1 pin configurations should be used.

ASE Center Wavelength
The center wavelength (CWL) of the amplified spontaneous emission (ASE) spectrum in broadband semiconductor devices, such as optical amplifiers, may show variation between lots. Please refer to the blue icons (info) below for the CWL tolerances of each particular model. For applications in which a specific ASE center wavelength is a critical concern, please contact Tech Support for information on the CWL of currently available lots.

Comparison of a SOA to a standard Fabry-Perot Laser Diode

Booster optical amplifiers (BOAs) and semiconductor optical amplifiers (SOAs) are single-pass, traveling-wave amplifiers that perform well with both monochromatic and multi-wavelength signals. Since BOAs only amplify one state of polarization, they are best suited for applications where the input polarization of the light is known. For applications where the input polarization is unknown or fluctuates, a Semiconductor Optical Amplifier (SOA) is required. However, the gain, noise, bandwidth, and saturation power specifications of a BOA are superior to that of a SOA because of the design features that make the SOA polarization insensitive.

BOAs and SOAs are similar in design to Fabry-Perot Laser Diodes, the difference being that Fabry-Perot laser diodes have reflective coatings on both end faces of the semiconductor chip. The optical feedback from the reflective end faces establishes a cavity in which lasing can occur. SOAs and BOAs have an anti-reflection (AR) coating on both end faces of the semiconductor chip. The AR coatings limit the optical feedback into the chip so that lasing does not occur.

As is typical for all amplifiers, BOAs/SOAs operate in two regimes: a linear, flat, constant gain regime and a non-linear, saturated output regime. When used to amplify a modulated signal, the linear regime is typically used to eliminate pattern-dependent distortion, multi-channel cross-talk, and transient response issues common to EDFAs. The non-linear regime is used to take advantage of the highly non-linear attributes of the semiconductor gain medium (cross-gain modulation, cross phase modulation) to perform wavelength conversion, optical 3R regeneration, header recognition, and other high-speed optical signal processing functions.

For a continuous wave input signal, the amount of power that can be produced by the amplifier is determined by the saturation output power (Psat) parameter. Psat is defined as the output power at which the small-signal gain has been compressed by 3 dB. The maximum amount of CW power that can be extracted is approximately 3 dB higher than the saturation power.

SOA Linear vs Non-linear Regimes

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Booster Optical Amplifiers

Item #a Info Operating
ASE Center
Operating Current 3 dB Bandwidth Saturation Output
Power (@ -3 dB)c,d
Small Signal Gain
(@ Pin = -20 dBm)c,d
Noise Figurec,d Fiber Type
BOA1210 info 1210 nm 1205 nmb 1200 mA 82 nm 23.5 dBm 20.5 dB 8 dB HI1060e
BOA1210P info PM980-XP
  • All specifications are typical unless otherwise noted.
  • The typical center ASE wavelength is not necessarily the operating wavelength. An operating wavelength of 1210 nm was selected for testing to yield the specified saturated output power of 23.5 dBm.
  • Measured at 1210 nm
  • Measured at the Operating Current
  • The BOA1210 uses HI1060 fiber, which is the same internal fiber as HI1060-J9, but with a different outer jacket.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
BOA1210 Support Documentation
BOA12101210 nm Booster Optical Amplifier, 23.5 dBm, Butterfly Package, SM, FC/APC
BOA1210P Support Documentation
BOA1210P1210 nm Booster Optical Amplifier, 23.5 dBm, Butterfly Package, PM, FC/APC