Simple and accurate fast-tunable laser system based on dual sideband locking

optics
Simple and accurate fast-tunable laser system based on dual sideband locking (GSC-TOPS-202)
Provides high tuning capability and extreme simplicity.
Overview
Previous laser tuning schemes for space-based missions based on optical phase-locked loops (OPPLs) involved use of many RF electronics, complicated FPGA setups, and multiple distributed feedback lasers (DFBs) that are not fast-tunable.

The Technology
NASA Goddard Space Flight Center has developed a single fast tunable seed laser system that does not involve the use of any OPLLs. Extra phase modulation is added onto a frequency locking system, generating artificial locking points with a known frequency offset, maintaining the stability of the selected frequency.
Two beams flash across a starry sky toward the Moon at Optical Site. Goddard's Laser Ranging Facility directs a laser toward the Lunar Reconassaince Orbiter
Benefits
  • Single laser used for fast and easy tuning
  • Fewer components required
  • Simple programming requirements

Applications
  • Laser system development
  • Laser sensing systems
Technology Details

optics
GSC-TOPS-202
GSC-17835-1
10348052
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