A new type of small size acousto-optic tunable filter with super narrow optical linewidth |
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Authors: | A Tsarev |
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Institution: | (1) Institute of Semiconductor Physics, Prospect Lavrenteva, 13, Novosibirsk, 630090, Russia, RU |
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Abstract: | The new concept of the creation of an acousto-optic tunable filter (AOTF) with super-resolution and small size is discussed.
The advantage of the device is based on the use of a novel type of multi reflector beam expander that produces a highly collimated
optical beam (angular spread about 100 ppm), tilted with a change in optical wavelength. The proposed AOTF, 1 cm in length,
can have an optical linewidth about 0.1 nm and up to 400 tunable channels at a wavelength of 1540 nm. It can be utilized as
a tunable filter for dense wavelength-division multiplexing (DWDM) in fiber optic networks and as a small-sized tunable optical
spectrometer, for example, in sensors of gases, liquids and solids. The acousto-optic tunable filter can be developed by known
technology developed for the creation of integrated optics and microelectronics devices.
Received: 28 April 2001 / Revised version: 22 August 2001 / Published online: 2 November 2001 |
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Keywords: | PACS: 42 79 C 42 79 F 42 79 G 42 79 J 42 79 S 42 82 E |
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