Title:
DIRECTLY MODULATED LASER
Document Type and Number:
WIPO Patent Application WO/2021/117095
Kind Code:
A1
Abstract:
This directly modulated laser comprises a distributed-feedback laser active region (101), and an optical feedback region (102) optically connected to one end in a waveguide direction of the laser active region (101). Laser oscillation is caused by means of photon-photon resonance (PPR) which occurs in accordance with a frequency difference between the frequency of light generated (oscillated) in the laser active region (101) and the frequency of an FP mode of the optical feedback region (102).
Inventors:
NAKAO RYO (JP)
YAMAOKA SUGURU (JP)
MATSUO SHINJI (JP)
YAMAOKA SUGURU (JP)
MATSUO SHINJI (JP)
Application Number:
PCT/JP2019/048115
Publication Date:
June 17, 2021
Filing Date:
December 09, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H01S5/068
Foreign References:
| JP2017017077A | 2017-01-19 | |||
| JP2018006440A | 2018-01-11 | |||
| JP2019204904A | 2019-11-28 | |||
| JP2019091780A | 2019-06-13 | |||
| JP2002033551A | 2002-01-31 | |||
| DE102006045876A1 | 2008-04-03 |
Other References:
BARDELLA, PAOLO ET AL.: "A New Design Procedure for DER Lasers Exploiting the Photon- Photon Resonance to Achieve Extended Modulation Bandwidth", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, vol. 19, no. 4, July 2013 (2013-07-01), pages 1 - 8, XP011508683, ISSN: 1077-260X, DOI: 10.1109/JSTQE.2013.2250260
MIEDA, SHIGERU ET AL.: "Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity", IEEE JOURNAL OF QUANTUM ELECTRONICS, vol. 52, no. 6, June 2016 (2016-06-01), pages 2200107.1 - 7, XP011609574, ISSN: 0018-9197, DOI: 10.1109/JQE.2016.2557489
MIEDA, SHIGERU ET AL.: "Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity", IEEE JOURNAL OF QUANTUM ELECTRONICS, vol. 52, no. 6, June 2016 (2016-06-01), pages 2200107.1 - 7, XP011609574, ISSN: 0018-9197, DOI: 10.1109/JQE.2016.2557489
Attorney, Agent or Firm:
YAMAKAWA, Shigeki et al. (JP)
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