Optical apparatus and a method using the apparatus, which utiliz

Details Optical apparatus and a method using the apparatus, which utiliz Optical apparatus and a method using the apparatus, which utiliz

1995-08-11

1996-05-28

Hellner, Mark

Optical: systems and elements

Optical amplifier

Particular active medium

372 43, H01S 318

Patent

active

055217540

ABSTRACT:
In an optical apparatus, such as a semiconductor optical amplifier device and an optical filtering apparatus, there are provided an optical amplifier device, a detector and a controller. The optical amplifier device has such a structure that exhibits a both-end voltage change at an optical amplification time of an input light. The detector detects the both-end voltage change, and the controller performs a predetermined control of a portion other than the optical amplifier device, such as another optical amplifier portion and a tunable band pass filler portion.

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