Title:
波長分離素子および光モジュール
Document Type and Number:
Japanese Patent JP4461272
Kind Code:
B2
Abstract:
A wavelength division element includes a first filter and a second filter. The first filter has incident angle-to-transmission wavelength characteristics and separates multiplexed lights in a plurality of wavelength bands into first lights that are in a first wavelength band and first reflected lights. The first filter allows the first lights to pass through in a first direction and reflects the first reflected lights in a second direction. The second filter is located in the second direction and separates the first reflected lights into second lights that are in a second wavelength band and second reflected lights. The second filter allows the second lights to pass through in a third direction and reflects the second reflected lights in a fourth direction.
Inventors:
Takashi Yamane
Toshiya Kishida
Satoshi Monma
Kazuyuki Nakasendo
Furusato Daiki
Toshiya Kishida
Satoshi Monma
Kazuyuki Nakasendo
Furusato Daiki
Application Number:
JP2003403834A
Publication Date:
May 12, 2010
Filing Date:
December 02, 2003
Export Citation:
Assignee:
Fujitsu Optical Components Limited
Epson Toyocom Corporation
Epson Toyocom Corporation
International Classes:
G02B6/42; G02B27/10; G02B5/26; G02B5/28; G02B6/293; G02B6/34; G02B27/14; H01S3/00
Domestic Patent References:
| JP61219906A | ||||
| JP60118104U | ||||
| JP2005027210A | ||||
| JP2003066376A | ||||
| JP3107802A | ||||
| JP3277929A |
Attorney, Agent or Firm:
Akinori Sakai