Chinese Optics Letters, Volume. 19, Issue 12, 121403(2021)
Non-mechanical beam scanner based on VCSEL integrated amplifier with resonant wavelength detuning design
Fig. 1. Schematic of the proposed solid-state beam scanner from the (a) side view and (b) cross-sectional view; (c) top view of a fabricated beam scanner.
Fig. 2. (a) Transmittance of top DBR mirror of the VCSEL seed laser section and amplifier section when 30 nm of the phase control layer of the VCSEL side is removed as a function of wavelength; (b) simulation results of lateral coupling behavior when the seed laser and amplifier are pumped separately.
Fig. 3. (a) Measured spectrum of the VCSEL seed laser and amplifier pumped separately when 30 nm of the phase control layer of VCSEL side is removed; (b) experimentally measured NFP when the VCSEL seed laser and amplifier are pumped separately; (c) photocurrent against reversed voltage at the amplifier.
Fig. 4. (a) Measured FFP of amplified slow light; (b) output power of the device under amplification against the pump current at the amplifier; (c) measured lasing spectrum of the amplifier with the current pump; (d) continuous beam steering through push–pull current pumping.
Fig. 5. (a) Averaged FFP of the device when the VCSEL side is pumped by a sinusoidal modulation current with modulation frequencies of 70 kHz and 10 kHz; (b) dynamic response of the beam steering.
Get Citation
Copy Citation Text
Shanting Hu, Xiaodong Gu, Masanori Nakahama, Fumio Koyama, "Non-mechanical beam scanner based on VCSEL integrated amplifier with resonant wavelength detuning design," Chin.Opt.Lett. 19, 121403 (2021)
Category: Lasers, Optical Amplifiers, and Laser Optics
Received: Apr. 12, 2021
Accepted: Jun. 4, 2021
Posted: Jun. 7, 2021
Published Online: Sep. 17, 2021
The Author Email: Shanting Hu (hu.s.ab@m.titech.ac.jp)