Abstract
Praseodymium-doped fiber amplifiers (PDFAs) are the most promising candidates for 1.3-μm-band fiber amplifiers. A signal gain of 28.3 dB was demonstrated with a PDFA module pumped by 1.02-μm strained-InGaAs-quantum-well laser diodes (LDs).1 The amplifier had a pumping configuration of four LD modules, each with an output power of 110 mW. However, to compete with PDFAs pumped by LD-pumped solid-state lasers, higher output power and lower chip cost are required. Here, we report high-power and low-divergence 1.02-μm strained-InGaAs-quantum-well LDs for PDFAs. The LDs were fabricated by a 2-in. full-wafer process with excellent uniformity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
