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US 2026/0056442 A1Published application
Optical apparatus and wavelength-tunable laser
AssigneeFurukawa Electric Co., Ltd.
InventorsKazuki YAMAOKA, Maiko ARIGA
Life of this patent
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Abstract
An optical apparatus includes: a base; a plurality of optical components fixed to the base, the plurality of optical components including an etalon filter; and an electric heating member integrated with the etalon filter, the electric heating member including a transparent electric heating element configured to be optically in series with the etalon filter and transmit light.
Claims20
An optical apparatus comprising:
- a base;
- a plurality of optical components fixed to the base, the plurality of optical components including an etalon filter;
- and
- an electric heating member integrated with the etalon filter, the electric heating member including a transparent electric heating element configured to be optically in series with the etalon filter and transmit light.
1 more element
A wavelength-tunable laser comprising:
- an optical amplification unit configured to generate light, amplify the light, and output the light from a first end portion and a second end portion that is on an opposite side of the first end portion;
- a first mirror configured to reflect the light output from the first end portion;
- a second mirror configured to reflect the light output from the second end portion;
- an etalon filter arranged between the optical amplification unit and the first mirror or the second mirror, the etalon filter having predetermined wavelength characteristics and being configured to transmit the light output from the optical amplification unit;
- and
- an electric heating member integrated with the etalon filter, the electric heating member including a transparent electric heating element configured to be optically in series with the etalon filter and transmit the light.
3 more elements
Dependencies are inferred from the claim text.