Athermalisation of tuneable lasers

Coherent light generators – Particular beam control device – Optical output stabilization

Reexamination Certificate

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C372S020000, C372S034000

Reexamination Certificate

active

07428254

ABSTRACT:
This invention describes a technique and apparatus to use any tuneable laser to generate a specified output frequency without controlling its temperature. This technique only involves a thermal sensor and a controller a determine the current(s) of voltage(s) applied to the grating or tuning section(s) to obtain the required wavelength. The control loop can be implemented using a programmed microprocessor, an amplifier and a low pass filter.

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patent: 0 516 398 (1992-12-01), None
patent: 2 381 121 (2003-04-01), None

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