Title:
LASER-BASED DEVICES UTILIZING IMPROVED SELF-MIX SENSING
Document Type and Number:
WIPO Patent Application WO/2019/058366
Kind Code:
A8
Abstract:
A device has a laser unit, which includes: a top-side p-type DBR region; which is on top of and in direct touch with an active region; which is on top of and in direct touch with a bottom-side n-type Distributed Bragg Reflector (DBR) region; which is on top of a n-type substrate. The laser unit further includes a voltage measurement anode touching or being in proximity to a top surface of the active region; and a voltage measurement cathode touching or being in proximity to a bottom surface of the active region. The voltage between the voltage measurement anode and the voltage measurement cathode is directly measured; and is utilized for determining characteristics of a laser self-mix signal of the laser unit, without having or using a monitor photo-diode.
Inventors:
FISHMAN TAL (IL)
BAKISH TAL (IL)
BAKISH TAL (IL)
Application Number:
PCT/IL2018/051041
Publication Date:
October 31, 2019
Filing Date:
September 17, 2018
Export Citation:
Assignee:
VOCALZOOM SYSTEMS LTD (IL)
International Classes:
H01S5/18
Attorney, Agent or Firm:
GILLIS, Sally (IL)
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