Skip Navigation
SBIR/STTR

A High Energy and High Efficiency Spectral Shaping Single Frequency Fiber Laser, Phase I

Completed Technology Project

Project Introduction

A High Energy and High Efficiency Spectral Shaping Single Frequency Fiber Laser, Phase I
This SBIR phase I project proposes a tunable single frequency high energy fiber laser system for coherent Lidar systems for remote sensing. Current state-of-art technologies can not provide all features of high energy and efficiency, compactness, narrow linewidth, super frequency and power stability, low noise, and high extinction ratio at the same time. PolarOnyx proposes, for the first time, a fast tuning (sub-microsecond) high energy (100 mJ) single frequency (< 1 KHz) fiber laser transmitter to meet with the requirement of solicitation. It is a specialty fiber based MOPA operating at 1550 nm. The mode selection in seed fiber laser is achieved by using an EO polymer based ultra narrow bandpass tunable filter. The output power can be scalable to several hundreds mW without any spatial hole burning issues and the frequency can be controlled at a stable and accurate operation. In the amplifier stage, PolarOnyx proposes a revolutionary approach to fundamentally resolve the issues of nonlinear effects by employing our patent pending proprietary technologies in fiber lasers. Our unique spectral shaping techniques enable us to reduce the SBS and ASE noise significantly in the amplifier for commercially available EYDFs and to reuse the residual pump to further increase the efficiency. These will make the fiber laser transmitter system superior in terms of wall plug efficiency (over 30%), energy(100 mJ), noise, size, and cost. A tabletop experiment will be demonstrated in Phase I time frame for proof of concept. A compact prototype will be delivered in Phase II. More »

Anticipated Benefits

Primary U.S. Work Locations and Key Partners

Project Library

Share this Project

Organizational Responsibility

Project Management

Project Duration

This is a historic project that was completed before the creation of TechPort on October 1, 2012. Available data has been included. This record may contain less data than currently active projects.

A final report document may be available for this project. If you would like to request it, please contact us.

^