WO2002079820A3 - Complex optical cavities - Google Patents

Complex optical cavities Download PDF

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Publication number
WO2002079820A3
WO2002079820A3 PCT/GB2002/001322 GB0201322W WO02079820A3 WO 2002079820 A3 WO2002079820 A3 WO 2002079820A3 GB 0201322 W GB0201322 W GB 0201322W WO 02079820 A3 WO02079820 A3 WO 02079820A3
Authority
WO
WIPO (PCT)
Prior art keywords
cavity
length
cavities
mirrors
complex
Prior art date
Application number
PCT/GB2002/001322
Other languages
French (fr)
Other versions
WO2002079820A2 (en
Inventor
Alexander Ivanovich Onischenko
Ralf Dieter Pechstedt
Mehdi Asghari
Original Assignee
Bookham Technology Plc
Alexander Ivanovich Onischenko
Ralf Dieter Pechstedt
Mehdi Asghari
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bookham Technology Plc, Alexander Ivanovich Onischenko, Ralf Dieter Pechstedt, Mehdi Asghari filed Critical Bookham Technology Plc
Priority to AU2002249362A priority Critical patent/AU2002249362A1/en
Publication of WO2002079820A2 publication Critical patent/WO2002079820A2/en
Publication of WO2002079820A3 publication Critical patent/WO2002079820A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12083—Constructional arrangements
    • G02B2006/12104—Mirror; Reflectors or the like
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12083—Constructional arrangements
    • G02B2006/12109—Filter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers
    • H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
    • H01S5/142—External cavity lasers using a wavelength selective device, e.g. a grating or etalon which comprises an additional resonator

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)
  • Lasers (AREA)

Abstract

A complex optical cavity system comprises a hybrid laser source, based on a traditional Mach-Zender Interferometer (MZI), consisting of three mirrors (1, 2 and 3) of reflectivity less than or equal to (1) and a beam splitter (5). The source additionally includes an extra mirror (4) of reflectivity less than (1), and a phase shifting element (PSE) (8) constituting a tunable Fabry-Perot filter. The mirrors (1 and 4) define a first cavity of length L1, and the mirrors (1 and 3) define a second cavity of length L2. An active medium (6) is provided to produce amplification of the light needed for stimulated (laser) emission within each of these cavities. The mirrors (2 and 4) form a FP cavity of length L3 within which the PSE (8) is positioned so as to allow the optical passband to be tuned to the required wavelength range. Any radiation of a wavelength that does not lie within the passband of the FP cavity of length L3 is confined to the MZI complex cavity consisting of the first cavity of length L1 and the second cavity of length L2. Since the optical lengths L1 and L2 differ by an odd number of μ/4, the modes of the first and second cavities interfere destructively, with the result that the modes of the whole complex cavity defined by the components (1, 3, 4 and 5) are suppressed. For any radiation of a wavelength that is within the passband of the FP, this FP cavity is transparent and such radiation is confined to the complex cavity. Since the optical lengths L1 + L3 and L2 of these cavities differ by an even number of μ/4, the light in the two cavities interferes constructively and the modes of the whole cavity defined by the components (1, 2, 3 and 5) are enhanced.
PCT/GB2002/001322 2001-03-31 2002-03-20 Complex optical cavities WO2002079820A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002249362A AU2002249362A1 (en) 2001-03-31 2002-03-20 Complex optical cavities

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0108128A GB0108128D0 (en) 2001-03-31 2001-03-31 Complex optical cavities
GB0108128.0 2001-03-31

Publications (2)

Publication Number Publication Date
WO2002079820A2 WO2002079820A2 (en) 2002-10-10
WO2002079820A3 true WO2002079820A3 (en) 2003-02-20

Family

ID=9912003

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/001322 WO2002079820A2 (en) 2001-03-31 2002-03-20 Complex optical cavities

Country Status (3)

Country Link
AU (1) AU2002249362A1 (en)
GB (1) GB0108128D0 (en)
WO (1) WO2002079820A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104132676A (en) * 2014-08-19 2014-11-05 中国工程物理研究院流体物理研究所 Coaxial amplitude-separation high-speed imaging and interference measuring method based on double FP cavities

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8542365B2 (en) 2009-03-23 2013-09-24 The United States Of America, As Represented By The Secretary Of The Navy Optical MEMS chemical sensor array
WO2021069629A1 (en) * 2019-10-08 2021-04-15 Vrije Universiteit Brussel Wavelength control of multi-wavelength laser
CN115085008B (en) * 2022-07-15 2023-04-25 上海新微半导体有限公司 Hybrid integrated tunable laser based on SOI and III-V semiconductors

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291281A (en) * 1977-09-02 1981-09-22 Agence National de Valorization de la Recherche Single mode double Michelson-type laser cavity resonator
US5844926A (en) * 1995-06-21 1998-12-01 Northern Telecom Limited Lasers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291281A (en) * 1977-09-02 1981-09-22 Agence National de Valorization de la Recherche Single mode double Michelson-type laser cavity resonator
US5844926A (en) * 1995-06-21 1998-12-01 Northern Telecom Limited Lasers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PALANGE E ET AL: "AN EXPERIMENTAL INVESTIGATION OF FREQUENCY SELECTION AND CONTROL IN LASERS WITH FOUR-MIRROR CAVITIES", OPTICS COMMUNICATIONS, NORTH-HOLLAND PUBLISHING CO. AMSTERDAM, NL, vol. 85, no. 5 / 6, 1 October 1991 (1991-10-01), pages 419 - 424, XP000227198, ISSN: 0030-4018 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104132676A (en) * 2014-08-19 2014-11-05 中国工程物理研究院流体物理研究所 Coaxial amplitude-separation high-speed imaging and interference measuring method based on double FP cavities

Also Published As

Publication number Publication date
WO2002079820A2 (en) 2002-10-10
AU2002249362A1 (en) 2002-10-15
GB0108128D0 (en) 2001-05-23

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