Broadband Gain Chips
Telecommunications requirements such as dynamic provisioning, channel protection, wavelength conversion and the replacement of fixed-wavelength distributed feedback lasers are driving the adoption of tunable laser sources. External-cavity lasers offer several advantages over other approaches: high power, wide tuning range, high side mode suppression ratio, narrow linewidth and high efficiency. The core technology behind the external-cavity laser is the broadband gain chip, a semiconductor...
Photonics Spectra, February 2002