HIGHLIGHTS

  • Seamless wavelength coverage: the new options 3xx remove the wavelength gap between the C-band and L-band channels
  • Adjustable-to-any-wavelength grid (ITU-T 100 GHz, 50 GHz, 25 GHz, and arbitrary grids)
  • Narrow linewidth less than 100 kHz and offset-grid tuning greater than ±6 GHz ideally suited for coherent mixing applications and new complex modulation formats
  • Up to +15 dBm output power, with 6 dB power adjustment range
  • Equipped with Panda polarization maintaining fiber

The Keysight Technologies 81950A compact tunable laser source is step-tunable for setting channel frequencies within any grid in the C- or L-band. With high output power up to +15 dBm, narrow linewidth of 100 kHz, and offset grid fine-tuning capability, the 81950A is a universal source for realistic loading of the latest transmission systems. It is available with C-band or L-band wavelength coverage. The 81950A can reach any wavelength point within its specified wavelength range just like all other Keysight tunable lasers. In this mode, code compatibility with existing test setups based on Keysight's range of full-size and compact tunable lasers is a great asset. In system loading applications, it may be preferable to grid-tune the laser like system transmitters, simply by changing the channel index. The channel grid is adjustable to standard ITU-T grid spacing like 50 GHz, and to arbitrary grids. Likewise, the zero frequency (base channel) of the chosen grid is adjustable. A 12 GHz fine-tuning range allows de-tuning the frequency.

Learn more about Keysight Optical Laser Source Products

KEY SPECIFICATIONS

Absolute wavelength accuracy
±22 pm
Laser Type
Tunable ECL (iTLA)
Linewidth/ Spectral bandwidth
<100 kHz
Mainframe Compatibility
8163A
8163B
8164A
8164B
8166A
8166B
Max. output power (peak, typ.)
≥ +15 dBm (Option 310); ≥ +13 dBm (Option 301)
Output power (tuning range)
≥ +13.5 dBm (Option 310); ≥ +11.5 dBm (Option 301)
Absolute wavelength accuracy
Laser Type
Linewidth/ Spectral bandwidth
Mainframe Compatibility
Max. output power (peak, typ.)
Output power (tuning range)
±22 pm
Tunable ECL (iTLA)
<100 kHz
8163A
8163B
8164A
8164B
8166A
8166B
≥ +15 dBm (Option 310); ≥ +13 dBm (Option 301)
≥ +13.5 dBm (Option 310); ≥ +11.5 dBm (Option 301)
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Absolute wavelength accuracy:
±22 pm
Laser Type:
Tunable ECL (iTLA)
Linewidth/ Spectral bandwidth:
<100 kHz
Mainframe Compatibility:
8163A
8163B
8164A
8164B
8166A
8166B
Max. output power (peak, typ.):
≥ +15 dBm (Option 310); ≥ +13 dBm (Option 301)
Output power (tuning range):
≥ +13.5 dBm (Option 310); ≥ +11.5 dBm (Option 301)
Signal to SSE ratio:
60 dB/0.1 nm
Tunability:
stepped
Wavelength options:
1527.60 - 1570.01 nm; 1570.01 - 1611.76 nm

Standard Configurations

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