---
title: "Frequency-Stabilized Laser Source and Shifted Light Source"
url: https://stacklist.com/card/1514a773-5d72-4265-9751-a9b2e34b1058
source_url: "https://singlefrequencylaser.com/products/integrated-frequency-stabilized-and-frequency-shifted-light-source"
stack: https://stacklist.com/stack/981a45cb-c212-499b-92db-9835b98b1323
summary: "The Fre-Lock & Shift integrated light source is a frequency-stabilized laser system designed for applications including laser wind LiDAR, precision spectroscopy, and metrology. It features iodine molecular absorption edge stabilization with optional frequency shifting up to 3.5 GHz and delivers stable output at 1064 nm wavelength."
tags: "laser-stabilization, frequency-shifting, lidar, spectroscopy, iodine-absorption, optical-metrology, fpga-control"
key_entities: "Fre-Lock & Shift (technology), Pound-Drever-Hall (PDH) Locking (technology), FPGA feedback control (technology), Iodine molecular absorption edge stabilization (concept), Frequency stabilization (concept), Doppler wind lidar (concept), Absorption Edge Midpoint Locking (technology)"
classification: "reference"
content_hash: "sha256:5d860037eeed700c95bcd3cf94c890ae93f03361ca0e32ffb3f08b5d400f39e6"
acp_version: "0.2"
token_counts_approximate: 979
visibility: public
agent_accessible: true
status: "final"
---

# Frequency-Stabilized Laser Source and Shifted Light Source

1 / 2 Single-Frequency High-Energy Series Integrated Frequency-Stabilized and Frequency-Shifted Light Source The Fre-Lock & Shift integrated light source is widely utilized in laser wind LiDAR, precision spectroscopy, sensing, and metrology. The system architecture consists of the Fre-Lock stabilization module and the optional Fre-Shift frequency-shifting module. Frequency Stabilization Module (Fre-Lock) Designed for precise laser frequency locking, the Fre-Lock module features a modular architecture that integrates a narrow-linewidth laser, a gas absorption optical path, and feedback electronics. It supports both Absorption Edge Midpoint Locking and PDH (Pound-Drever-Hall) Locking, delivering a frequency-stable seed laser output at the hundred-milliwatt level. Frequency Shifting Module (Fre-Shift) — Optional Working in tandem with the stabilization module, the Fre-Shift module enables frequency shifting based on a stabilized frequency. It offers a maximum shifting range of 3.5 GHz with an accuracy of 2 MHz. The module integrates high-precision seed driver temperature control, a digital frequency-phase discriminator, and loop filters. It supports LD current/temperature PID feedback control, multi-channel AD acquisition, and DA output. Core Technology: Iodine Molecular Absorption Edge Stabilization The system locks to the midpoint of iodine absorption line edges. By utilizing a high-speed FPGA feedback control module, three-stage stabilization loop control, and optical power feedback technology, it ensures long-term, high-stability laser output. The host computer software stores parameters for various absorption lines, allowing seamless switching between Lines 1104-1111. The system features an automatic re-locking function in case of accidental de-locking, and supports manual or automatic calibration of the stabilized wavelength at any time. The Fre-Lock & Shift integrated light source is structurally stable and highly reliable, ensuring reliable 24/7 long-term operation. Get Quote Now Key Features Integrated frequency stabilization and frequency shifting Absorptionedge midpoint locking and PDH locking support Optional frequency shift up to 3.5 GHz with 2 MHz accuracy FPGAbased multistage frequency control loops Optical power feedback for longterm stability Applications Doppler wind lidar Precision spectroscopy Optical sensing Metrology Technical Parameters Parameter Name Unit Specification Output Wavelength nm 1064 Output Optical Power mW >15 Operating Mode — Continuous (CW) Linewidth MHz <1 Frequency Stability (RMS) — <1 MHz @ 24 h @ 3 °C temperature variation Power Stability (RMS) — ≤1% at room temperature Relocking Error MHz <20 Relative Intensity Noise — < −140 dB/Hz @ 10 MHz Frequency Locking Range — Iodine molecular absorption lines 1104–1111 Locking Position — Absorption line midpoint Frequency Shift Range (optional) GHz 0.2–3.5, −3.5 to −0.2 Frequency Shift Accuracy (optional) MHz 2 Output Type — Fiber output, FC/APC Communication Protocol — RS422 Power Supply V DC 12 Dimensions mm³ 360 × 335 × 200 Operating Temperature °C −10 to 40 Storage Temperature °C −20 to 50 Operating Humidity %RH 0–80 Structural Dimensions Integrated Frequency-Stabilized and Frequency-Shifted Light Source - Diagram 1 Integrated Frequency-Stabilized and Frequency-Shifted Light Source - Diagram 2 Integrated Frequency-Stabilized and Frequency-Shifted Light Source - Diagram 3 Integrated Frequency-Stabilized and Frequency-Shifted Light Source - Diagram 4 Integrated Frequency-Stabilized and Frequency-Shifted Light Source - Diagram 5 Integrated Frequency-Stabilized and Frequency-Shifted Light Source - Diagram 6 Need More Information? Our technical team is ready to help you find the perfect laser solution for your specific requirements. Get detailed specifications, custom configurations, and expert consultation. Request a Quote Browse All Products