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Unveils etalon based wavelength lockers intended for use with tunable telecommunications sources in the C and L bands
February 18, 2002
MOUNTAIN VIEW, Calif. -- Spectra-Physics has introduced a series of etalon based wavelength lockers intended for use with tunable telecommunications sources in the C and L bands, such as DFB and DBR lasers. These wavelength lockers enable laser output frequency to be stabilized to within ±1.5 GHz, and support ITU channels at either 100 GHz or 50 GHz spacings. Their air spaced etalon construction makes these devices compact, rugged, epoxy free and thermally insensitive. Spectra-Physics wavelength lockers are available as either OEM modules, which are custom designed for integration within the source package, or as fiber-coupled, hermetically sealed standalone devices, for use with packaged lasers. All these wavelength lockers supply a feedback signal that can be used to control laser drive current and/or temperature. A precision temperature sensor is also included to provide input data to a temperature compensation system. OEM internal wavelength locking modules can be configured for either rear facet monitoring of a DFB laser, or front facet monitoring of a DBR laser. Units intended for front facet monitoring also feature low insertion loss and minimal beam displacement. Spectra-Physics Inc.
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