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Title: Frequency chirped light at large detuning with an injection-locked diode laser

We have developed a laser system to generate frequency-chirped light at rapid modulation speeds (∼100 MHz) with a large frequency offset. Light from an external cavity diode laser with its frequency locked to an atomic resonance is passed through a lithium niobate electro-optical phase modulator. The phase modulator is driven by a ∼6 GHz signal whose frequency is itself modulated with a RF MHz signal (<200 MHz). A second injection locked diode laser is used to filter out all of the light except the frequency-chirped ±1 order by more than 30 dB. Using this system, it is possible to generate a 1 GHz frequency chirp in 5 ns.
Authors:
; ; ; ; ;  [1]
  1. Physics Department, Adelphi University, 1 South Ave., Garden City, New York 11530 (United States)
Publication Date:
OSTI Identifier:
22392446
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; FILTERS; GHZ RANGE 01-100; LASERS; MHZ RANGE 01-100; MODULATION; NIOBATES; SIGNALS; VELOCITY