Optical beam expander with a function of laser power detection

Details Optical beam expander with a function of laser power detection Optical beam expander with a function of laser power detection

2005-11-29

2005-11-29

Dang, Hung Xuan (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

C359S618000, C359S634000

Reexamination Certificate

active

06970295

ABSTRACT:
An optical beam expander with a function of laser ray power detection provides an electric signal for feedback controlling laser ray power. By testing the power stability within a temperature range of 15 to 25° C., this apparatus demonstrates that it can stabilize an unstable laser to stable range of 5% when combined with a traditional self-controlling circuit arrangement.

REFERENCES:
patent: 5991016 (1999-11-01), Irie
patent: 6181431 (2001-01-01), Siu
patent: 2002/0191177 (2002-12-01), Ulrich et al.
patent: 2005/0041705 (2005-02-01), Chien et al.

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