Title:
【発明の名称】集積可変波長光フィルタ
Document Type and Number:
Japanese Patent JP3185930
Kind Code:
B2
Abstract:
An integrated tunable optical filter comprising a substrate made of a semiconducting material. The substrate includes first and second sections. The first section forms a tunable transmission filter, based on a codirectional coupler having a low selectivity. The second section forms a reflection filter with a reflection spectrum containing a number of peaks. A first injector, designed for current injection into said first section, is provided. Thus, the filter response of the first section is shifted in wavelength over a large wavelength range. There is also a second injector, designed for current injection into the second section. As a result, the reflective spectrum of the second section is slightly shifted in wavelength, in such a way that one reflection peak of the reflection spectrum corresponds to the coupling wavelength of the first section. Consequently, the total filter response has a very narrow bandwidth and wide tunability.
More Like This:
| JPH0223323 | WAVEGUIDE TYPE WAVELENGTH CONVERTING ELEMENT |
| WO/2021/214594 | PHOTON-PAIR SOURCE FOR QUANTUM APPLICATIONS |
| JPH11237518 | MANUFACTURE OF OPTICAL WAVEGUIDE |
Inventors:
Willems, Jean
Baillets, Royle
Baillets, Royle
Application Number:
JP50761594A
Publication Date:
July 11, 2001
Filing Date:
September 17, 1993
Export Citation:
Assignee:
Interuniversitaire Micro Electronica Santrum ve Zette de Bourvet
International Classes:
G02B6/12; G02F1/025; G02F1/295; G02F1/313; H01S5/10; H01S5/12; (IPC1-7): G02F1/025
Domestic Patent References:
| JP4211220A | ||||
| JP479287A | ||||
| JP2154476A | ||||
| JP263012A | ||||
| JP63223605A | ||||
| JP6326619A |
Other References:
Ａｐｐｌｉｅｄ Ｐｈｙｓｉｃｓ Ｌｅｔｔｅｒｓ，Ｖｏｌ．６０，Ｎｏ．１９（１９９２）Ｖ．Ｊａｙａｒａｍａｎ，ｅｔ．ａｌ．「Ｄｅｍｏｎｓｔｒａｔｉｏｎ ｏｆ ｂｒｏａｄｂａｎｄ ｔｕｎａｂｉｌｉｔｙ ｉｎ ａ ｓｅｍｉｃｏｎｄｕｃｔｏｒ ｌａｓｅｒ ｕｓｉｎｇ ｓａｍｐｌｅｄ ｇｅａｔｉｎｇｓ」ｐｐ．２３２１−２３２３
Ａｐｐｌｉｅｄ Ｐｈｙｓｉｃｓ Ｌｅｔｔｅｒｓ，Ｖｏｌ．６０，Ｎｏ．８（１９９２）Ｒ．Ｃ．Ａｌｆｅｒｎｅｓｓ，ｅｔ．ａｌ．「Ｂｒｏａｄｌｙ ｔｕｎａｂｌｅ ＩｎＧａＡｓＰ／ＩｎＰ ｂｕｒｉｅｄ ｒｉｂ ｗａｖｅｇｕｉｄｅ ｖｅｒｔｉｃａｌ ｃｏｕｐｌｅｒ ｆｉｌｔｅｒ」ｐｐ．９８０−９８２
ＥＬＥＣＴＲＯＮＩＣＳ ＬＥＴＴＥＲＳ，Ｖｏｌ．２７，Ｎｏ．２２（１９９１）Ｔ．Ｈｉｒａｔａ，ｅｔ．ａｌ．「Ｍｏｎｏｌｉｔｈｉｃ ｒｅｓｏｎａｎｔ ｏｐｔｉｃａｌ ｒｅｆｌｅｃｔｏｒ ｌａｓｅｒ ｄｉｏｄｅｓ」ｐｐ．２０５０−２０５１
Ａｐｐｌｉｅｄ Ｐｈｙｓｉｃｓ Ｌｅｔｔｅｒｓ，Ｖｏｌ．６０，Ｎｏ．８（１９９２）Ｒ．Ｃ．Ａｌｆｅｒｎｅｓｓ，ｅｔ．ａｌ．「Ｂｒｏａｄｌｙ ｔｕｎａｂｌｅ ＩｎＧａＡｓＰ／ＩｎＰ ｂｕｒｉｅｄ ｒｉｂ ｗａｖｅｇｕｉｄｅ ｖｅｒｔｉｃａｌ ｃｏｕｐｌｅｒ ｆｉｌｔｅｒ」ｐｐ．９８０−９８２
ＥＬＥＣＴＲＯＮＩＣＳ ＬＥＴＴＥＲＳ，Ｖｏｌ．２７，Ｎｏ．２２（１９９１）Ｔ．Ｈｉｒａｔａ，ｅｔ．ａｌ．「Ｍｏｎｏｌｉｔｈｉｃ ｒｅｓｏｎａｎｔ ｏｐｔｉｃａｌ ｒｅｆｌｅｃｔｏｒ ｌａｓｅｒ ｄｉｏｄｅｓ」ｐｐ．２０５０−２０５１
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)