# SAM #FA875126P0049

Award for Stable Optical Cavity Absolute Reference System and Components

**Buyer:** AFRL RIK
**Posted:** September 28, 2026
**Identifier:** FA875126P0049
**NAICS:** 334516, 334511, 334419

This award is for a specialized optical reference cavity system for the Air Force Research Laboratory.
- Government Buyer:
  - Department of the Air Force, Air Force Research Laboratory (AFRL), FA8751 office
- OEM/Vendor:
  - STABLE LASER SYSTEMS INC (sole manufacturer identified)
- Products Requested:
  - Stable Optical Cavity Absolute Reference System
  - Vacuum Housing for Cylinder Cavity Assembly
    - Includes Zerodur mounting block, vacuum can with notch, indium and O-ring seals, thermal insulation, heaters, thermistors, AR-coated windows, horizontal cavity with optical access
    - Achieves vacuum pressure of at least 10^-7 Torr
    - Thermistor model MC65F103B
    - Tuning range 1480 - 1640 nm or wider
  - Measurement of Zero Crossing Temperature of Notched Cavity Assembly
    - Provides frequency vs temperature graph for optimal cavity operation
    - Temperature must be above dew point and below 150°C
  - Temperature Controller Unit
    - Compatible with system, tunes vacuum housing to zero-crossing temperature
  - Ion Pump Unit
    - Includes ion pump, controller, HV cable, valve for 1.33 Conflat tee
    - Must achieve vacuum pressure of 10^-7 Torr or less
- Notable Requirements:
  - Operational wavelengths at 493 nm and 650 nm
  - Sole-source award due to unique technical specifications only met by Stable Laser Systems
  - Measurement and control of zero-crossing temperature for optimal cavity performance
- Award Value: $56,988
- No part numbers or purchase quantities specified beyond single units for each component

### Description

<p>Stable Optical Cavity Absolute Reference System</p>

[View original listing](https://sam.gov/opp/bcc61bee077e4e07b765a6031d325f70/view)