公开(公告)号：US20250141183A1

公开(公告)日：2025-05-01

申请号：US18495382

申请日：2023-10-26

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： Daniel P. Lacroix ,  Zakary N. Burkley ,  Steven E. Turner ,  Mackenzie A. Van Camp ,  Shailendra Srinivas ,  Gary M. Madison ,  Brendan L. Metzner

IPC: H01S5/042 ,  H01S5/024

Abstract: Laser control circuitry is described. In one example, a laser controller integrated circuit (IC) includes first and second input ports, a sideband direct digital synthesizer (DDS) coupled to the first input port and configured to produce a modulation signal and a reference signal based on an input signal received via the first input port, the modulation signal and the reference signal having a same frequency. The laser controller IC further includes a Pound-Drever-Hall frequency-locking control loop coupled to the second input port and to the sideband DDS, and configured to produce a corrected DC bias current signal based on the reference signal and a measurement signal received via the second input port, and a thermal management circuit configured to produce at least one thermal control signal.