Prototype Laser Electronics Assembly

The NASA/NSSC is seeking a prototype laser electronics assembly for a 1030-nm fiber laser lidar transmitter. The assembly must be based on an existing circuit that has demonstrated a Technology Readiness Level 6 (TRL-6) for space application. The specifications include a laser output power of 2 W average and 256 W peak, a wavelength of 1030 nm, and a modulation of Return to Zero Pseudo Noise (RZPN) code with 8-ns pulse width and 1/128 duty cycle. The assembly must also have a continuous output power adjustment range, digital input/output, and operate within a temperature range of 0 to 50 degrees Celsius and a pressure of <1e-5 torr. The deliverable is a single electronics circuit assembly for a 1030-nm 2-W fiber laser lidar transmitter. Key features of the project include: • Laser output power: 2 W average, 256 W peak • Laser output wavelength: 1030 nm • Modulation: Return to Zero Pseudo Noise (RZPN) code with 8-ns pulse width and 1/128 duty cycle • Output power adjustment range: continuous adjustment from 0 to 2-W average output power • Input/Power: 28 VDC • Input/Signal: Laser trigger, 0 to 1 V, 8-ns pulse width • Digital Input/Output: laser control and telemetry read-back • Operation temperature: 0 to 50 degrees Celsius • Operation condition (pressure): <1e-5 torr • Size: 184.15 by 101.6 mm printed circuit board, one each