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81657A Dual Fabry-Perot Laser Source, 1310 nm and 1550 nm, >13 dBm (20 mW)
To take the uncertainty out of monitoring loss over long periods of time, Keysight's 81657A 1310 / 1550 nm Fabry-Perot source is stabilized and very insensitive to back reflections.
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Highlights
- 1310 and 1550 nm
- 20 mW output power
- CW power stability: ±0.03 db (24h)
- Output attenuation
The Keysight 81657A Fabry-Perot laser source is a dual-wavelength module to be used in conjunction with optical power meter modules for insertion loss, optical return loss, and PDL measurement of broadband components and fiber. The 81657A Fabry-Perot lasers are insensitive to back reflections and are stabilized for short and long-term applications.
Single- and dual-wavelength source modules are available with an output power of up to +13 dBm. You can attenuate the output power of the sources for applications requiring lower power.
Key Specifications
Standard Configuration
- 1310 and 1550 nm
- 20 mW output power
- CW power stability: ±0.03 db (24h)
- Output attenuation

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