Abstract
We report on the free-running and frequency stabilized operation of a ring resonator-tuned full-band tuneable laser. The laser is a monolithically integrated semiconductor ring laser tuneable over 34 nm, from 1522–1556 nm, fabricated using a commercially-available, InP-based, active-passive foundry technology. The mode selection is implemented using the Vernier effect by reverse-biasing voltage-controlled electro-optically tuned ring resonators. The laser exhibits a typical intrinsic linewidth of 110 kHz over the C-band and a side-mode suppression ratio (SMSR) exceeding 50 dB. The linewidth over the tuning range does not significantly vary, showing that the tuning mechanism does not cause linewidth broadening. The power dissipated in the tuning elements is 1.4 mW per ring. Using the same reverse bias voltage-controlled electro-optic tuning, we also demonstrate the locking of the laser to a high-finesse etalon using Poun–Drever–Hall frequency locking. Our implementation requires a single control loop because of the reverse bias tuning. All deployed tuning effects in the phase modulators have the same sign therefore resulting in a flatter frequency dependent phase response compared to current injection feedback. The control loop has a bandwidth of 500 kHz and a control range of 2.9 GHz. We report 1 kHz level linewidth for millisecond observation times for the stabilized laser.
PDF Article
More Like This
InP high power monolithically integrated widely tunable laser and SOA array for hybrid integration
Keith A. McKinzie, Cong Wang, Abdullah Al Noman, David L. Mathine, Kyunghun Han, Daniel E. Leaird, Gloria E. Hoefler, Vikrant Lal, Fred Kish, Minghao Qi, and Andrew M. Weiner
Opt. Express 29(3) 3490-3502 (2021)
Monolithically integrated widely tunable laser source operating at 2 μm
S. Latkowski, A. Hänsel, P. J. van Veldhoven, D. D’Agostino, H. Rabbani-Haghighi, B. Docter, N. Bhattacharya, P. J. A. Thijs, H. P. M. M. Ambrosius, M. K. Smit, K. A. Williams, and E. A. J. M. Bente
Optica 3(12) 1412-1417 (2016)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription