Title:
MONOLITHIC RING LASER AND RING LASER GYRO EMPLOYING IT
Document Type and Number:
Japanese Patent JPH0715063
Kind Code:
A
Abstract:
PURPOSE: To provide a monolithic ring laser which can be manufactured easily and to constitute a monolithic ring laser gyro using it.
CONSTITUTION: A ring 3, an inlet waveguide 4, and outlet waveguides 6-8 are provided on a dielectric substrate 2. A λ/4 phase shifter 29 is disposed on the waveguide 6. When a laser light from a laser diode 11 impinges on the inlet waveguide 4 of the ring laser, laser emission takes place in the right and left rotational directions. When the system rotates as a whole, signals having phase shift of 90° are delivered from photodiodes 12, 13. Rotational angle and angular speed are detected by deciding the frequencies of the signals and the phase lead/lag thereof.
Inventors:
TEI DAIKOU
MEKATA NAOYUKI
MURAKAMI TOMOHIRO
MEKATA NAOYUKI
MURAKAMI TOMOHIRO
Application Number:
JP18079893A
Publication Date:
January 17, 1995
Filing Date:
June 25, 1993
Export Citation:
Assignee:
SUN TEC KK
International Classes:
G01C19/66; H01S3/06; H01S3/083; (IPC1-7): H01S3/083; G01C19/66
Attorney, Agent or Firm:
Yoshiki Okamoto (1 person outside)
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