公开(公告)号：US20220200612A1

公开(公告)日：2022-06-23

申请号：US17692742

申请日：2022-03-11

Applicant: National Institute of Information and Communications Technology ,  Tokyo Institute of Technology

Inventor： Motoaki HARA ,  Yuichiro YANO ,  Masatoshi KAJITA ,  Tetsuya IDO ,  Hiroyuki ITO

IPC: H03L7/26 ,  G04F5/14

Abstract: This atomic resonator for causing a resonance frequency by CPT resonance includes: a gas cell having alkali metal atoms enclosed; a photodetector configured to detect light having passed through the gas cell and convert the light to an electric signal; a high-frequency oscillator configured to receive the electric signal and output the signal after a frequency thereof is divided by two; and a laser light source configured to modulate and introduce, into the gas cell, light based on the signal output from the high-frequency oscillator. The high-frequency oscillator has an injection-locked frequency divider circuit including an acoustic resonator as an oscillation element.

公开(公告)号：US20230012453A1

公开(公告)日：2023-01-12

申请号：US17783776

申请日：2020-12-08

Applicant: National Institute of Information and Communications Technology

Inventor： Motoaki HARA ,  Yuichiro YANO ,  Masatoshi KAJITA ,  Tetsuya IDO ,  Satoshi SHINADA ,  Takahito ONO ,  Masaya TODA

IPC: H01S5/183 ,  H01S5/042

Abstract: Provided is a variable-wavelength surface emission laser having a wide wavelength variation range. A partial region of a thin-plate substrate (22) and a movable mirror (20), the partial region being positioned between an air gap (G1) and a movable gap (G2), can move toward the air gap (G1) side or the movable gap (G2) side.