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Title: Temperature feedback control for long-term carrier-envelope phase locking

Abstract

A feedback control module for stabilizing a carrier-envelope phase of an output of a laser oscillator system comprises a first photodetector, a second photodetector, a phase stabilizer, an optical modulator, and a thermal control element. The first photodetector may generate a first feedback signal corresponding to a first portion of a laser beam from an oscillator. The second photodetector may generate a second feedback signal corresponding to a second portion of the laser beam filtered by a low-pass filter. The phase stabilizer may divide the frequency of the first feedback signal by a factor and generate an error signal corresponding to the difference between the frequency-divided first feedback signal and the second feedback signal. The optical modulator may modulate the laser beam within the oscillator corresponding to the error signal. The thermal control unit may change the temperature of the oscillator corresponding to a signal operable to control the optical modulator.

Inventors:
 [1];  [1];  [1];  [1];  [1]
  1. Manhattan, KS
Issue Date:
Research Org.:
Kansas State University Research Foundation (Manhattan, KS)
Sponsoring Org.:
USDOE
OSTI Identifier:
1067333
Patent Number(s):
8228961
Application Number:
13/320,226
Assignee:
Kansas State University Research Foundation (Manhattan, KS)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
DOE Contract Number:  
FG02-86ER13491
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Chang, Zenghu, Yun, Chenxia, Chen, Shouyuan, Wang, He, and Chini, Michael. Temperature feedback control for long-term carrier-envelope phase locking. United States: N. p., 2012. Web.
Chang, Zenghu, Yun, Chenxia, Chen, Shouyuan, Wang, He, & Chini, Michael. Temperature feedback control for long-term carrier-envelope phase locking. United States.
Chang, Zenghu, Yun, Chenxia, Chen, Shouyuan, Wang, He, and Chini, Michael. Tue . "Temperature feedback control for long-term carrier-envelope phase locking". United States. https://www.osti.gov/servlets/purl/1067333.
@article{osti_1067333,
title = {Temperature feedback control for long-term carrier-envelope phase locking},
author = {Chang, Zenghu and Yun, Chenxia and Chen, Shouyuan and Wang, He and Chini, Michael},
abstractNote = {A feedback control module for stabilizing a carrier-envelope phase of an output of a laser oscillator system comprises a first photodetector, a second photodetector, a phase stabilizer, an optical modulator, and a thermal control element. The first photodetector may generate a first feedback signal corresponding to a first portion of a laser beam from an oscillator. The second photodetector may generate a second feedback signal corresponding to a second portion of the laser beam filtered by a low-pass filter. The phase stabilizer may divide the frequency of the first feedback signal by a factor and generate an error signal corresponding to the difference between the frequency-divided first feedback signal and the second feedback signal. The optical modulator may modulate the laser beam within the oscillator corresponding to the error signal. The thermal control unit may change the temperature of the oscillator corresponding to a signal operable to control the optical modulator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Works referenced in this record: