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.
Physics Department, Adelphi University, 1 South Ave., Garden City, New York 11530, USA.
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K
Teng
Physics Department, Adelphi University, 1 South Ave., Garden City, New York 11530, USA.
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Disla
Physics Department, Adelphi University, 1 South Ave., Garden City, New York 11530, USA.
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Dellatto
Physics Department, Adelphi University, 1 South Ave., Garden City, New York 11530, USA.
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Limani
Physics Department, Adelphi University, 1 South Ave., Garden City, New York 11530, USA.
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B
Kaufman
Physics Department, Adelphi University, 1 South Ave., Garden City, New York 11530, USA.
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Wright