Abstract

In this work, we fabricate directly modulated membrane distributed reflector (DR) lasers on a Si waveguide by utilizing micro-transfer printing method. Micro-transfer printing enables low-loss coupling between the lasers and the silicon photonics circuit, and since it is a back-end process, we can test the lasers prior to integration. A membrane laser is as thick as the Si waveguides, which makes optical coupling between the two quite easy. In addition, membrane lasers with a lateral p-i-n diode structure have low capacitance and a large optical confinement factor, which means they can achieve a low threshold current and high-speed modulation operation with low energy consumption. The fabricated membrane DR laser integrated with a 220-nm-thick Si waveguide exhibits a low threshold current of 1.2 mA and single-mode operation at 1535 nm with a side-mode suppression ratio (SMSR) of about 40 dB at the bias current of 14 mA. It also achieves the E-O bandwidth of over 25 GHz and 50-Gbit/s non-return-to-zero (NRZ) signal modulation with an extinction ratio of 2.5 dB.

Micro-transfer-printed III-V-on-silicon C-band distributed feedback lasers

Bahawal Haq, Javad Rahimi Vaskasi, Jing Zhang, Agnieszka Gocalinska, Emanuele Pelucchi, Brian Corbett, and Gunther Roelkens
Opt. Express 28(22) 32793-32801 (2020)

Hybrid distributed Bragg reflector laser on Si with a transfer printed InAs/GaAs quantum dot amplifier

Natalia Morais, Junichi Fujikata, Jinkwan Kwoen, Takahiro Nakamura, Yasutomo Ota, and Yasuhiko Arakawa
Opt. Express 32(3) 4295-4304 (2024)

Membrane distributed-reflector laser integrated with SiOx-based spot-size converter on Si substrate

Hidetaka Nishi, Takuro Fujii, Koji Takeda, Koichi Hasebe, Takaaki Kakitsuka, Tai Tsuchizawa, Tsuyoshi Yamamoto, Koji Yamada, and Shinji Matsuo
Opt. Express 24(16) 18346-18352 (2016)

Membrane buried-heterostructure DFB laser with an optically coupled III-V/Si waveguide

Takuma Aihara, Tatsurou Hiraki, Koji Takeda, Takuro Fujii, Takaaki Kakitsuka, Tai Tsuchizawa, and Shinji Matsuo
Opt. Express 27(25) 36438-36448 (2019)

Transfer-printing-based integration of a III-V-on-silicon distributed feedback laser

Jing Zhang, Bahawal Haq, James O’Callaghan, Angieska Gocalinska, Emanuele Pelucchi, António José Trindade, Brian Corbett, Geert Morthier, and Gunther Roelkens
Opt. Express 26(7) 8821-8830 (2018)