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Optica Publishing Group
  • CLEO/Europe and EQEC 2011 Conference Digest
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper CA_P38

Rapidly tunable intra-cavity Cr3+:LiCAF-PPSLT optical parametric oscillator based on a self-injection-locked pump wave

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Abstract

Dual-wavelength continuous-wave lasers with a high degree of phase correlation between the two laser waves are useful for optical generation of coherent milimeter and sub-milimeter (THz) when both laser wavelengths are close enough. In particular, dual wavelength lasers operating around 1.5-1.6 µm telecom wavelengths are useful for coherent radio-over-fiber systems and microwave photonics [1] and for generation of coherent THz radiation by beating both laser waves in a travelling-wave photoconductor, a photomixing antenna or by nonlinear difference frequency mixing [2]. By its nature, doubly resonant optical parametric oscillators (DROPOs) operating close to degeneracy are known to provide highly correlated signal and idler waves [3], which potentially reduce the phase noise in their beat frequency, thus increasing its coherence. Intra-cavity OPO pumping allows for significant reduction in pump requirements [4], well within the reach of diode lasers.

© 2011 Optical Society of America

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