Picosecond pulses with 40 W peak power from a passively mode‐locked tapered quantum well laser. Issue 4 (13th February 2023)

• Record Type: Journal Article
• Authors: Wohlfeil, Shulin; Christopher, Heike; Fricke, Jörg; Wenzel, Hans; Knigge, Andrea; Tränkle, Günther
• Is Part Of: Electronics letters. Volume 59:Issue 4(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-02-13
• Subjects: laser mode locking -- optical pulse generation -- quantum well lasers; Electronics -- Periodicals; 621.381
• DOI: 10.1049/ell2.12736
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract: In this letter, the authors present a monolithic edge emitting diode laser intended as a potential key component for the generation of terahertz radiation in a compact time‐domain spectroscopy system. The 6 mm long multi‐section InGaAsP double quantum well (DQW) laser, featured with a 3.6 mm long tapered (TP) gain section, operates at a wavelength of ∼832 nm and generates pulses at a fundamental repetition rate of ∼6.3 GHz in passive mode‐locking operation. Pulses with 2.6 ps width and 40 W peak power are measured. The generated pulses are not bandwidth‐limited and should be compressible for further applications. Abstract : Pulses with 2.6 ps width and 40 W peak power are generated from a monolithic quantum well diode laser in passive mode‐locking operation. The laser is featured with a tapered gain section.