Integrated frequency comb laser with narrow intrinsic optical linewidth based on a dielectric waveguide feedback circuit
Abstrak
We present an integrated hybrid semiconductor-dielectric (InP-Si$_3$N$_4$) waveguide laser that generates frequency combs at a wavelength around 1.5 $μ$m with a record-low intrinsic optical linewidth of 34 kHz. This is achieved by extending the cavity photon lifetime using a low-loss dielectric waveguide circuit. In our experimental demonstration, the on-chip, effective optical path length of the laser cavity is extended to 6 cm. The resulting linewidth narrowing shows the high potential of on-chip, highly coherent frequency combs with direct electrical pumping, based on hybrid and heterogeneous integrated circuits making use of low-loss dielectric waveguides.
Topik & Kata Kunci
Penulis (7)
Jesse Mak
Albert van Rees
Youwen Fan
Edwin J. Klein
Dimitri Geskus
Peter J. M. van der Slot
Klaus. -J. Boller
Akses Cepat
- Tahun Terbit
- 2019
- Bahasa
- en
- Sumber Database
- arXiv
- Akses
- Open Access ✓