Wavelength locking of multiple diode lasers by multiplexed gratings in a photorefractive crystal
نویسندگان
چکیده
We propose a technique to simultaneously stabilize relative wavelengths among multiple diode lasers by using multiplexed photorefractive gratings. Each grating is designed to be Bragg matched for the counter-propagating reflection at a specific diode laser wavelength. Experimental results from stabilization of two diode laser wavelengths by using two photorefractive gratings exhibit excellent shortand long-term wavelength stability. We show that this technique can be extended to stabilize relative wavelengths of many diode lasers. The thermal stability of the photorefractive gratings and the signal-to-noise ratio ~or the bit-error rate! are discussed. © 2000 American Institute of Physics. @S0003-6951~00!00241-2#
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