PURPOSE:To measure the differential characteristics of a laser diode excellently by applying a DC voltage to a DC cutting capacitor only for a short time and short-circuiting both ends of a transformer for the application time at every time the DC voltage varies, and detecting a superposed AC...
Understand laser diode specifications and characteristics and how they relate to real circuits and applications wit tips on the precautions that need to be considered.
(Invited) LPE and Characteristics of GaInAsP/InP 1.5 µm Region Laser Diodes 喜欢 0 阅读量: 18 作者: Haruo Nagai 摘要: InP/GaInAsP/InP DH structure crystals for 1.5?1.6 ?m wavelength region have been grown by LPE. Difficulties due to dissolution of the quaternary active layer during ...
A scheme of a diode laser is shown in Fig. 2.1. The following chapter takes a short tour through the excitation of high-power semiconductor lasers by examining the current injection of carriers, the optical gain, and appropriate resonator structures. More detailed descriptions of several aspects ...
A laser diode is a semiconductor device which works in an infrared spectrum and produces coherent light beams. They find applications in telecom, medical field, and in industries. They have a few advantages over other light-emitting devices.
In this paper, we studied reflection characteristics of polymeric waveguides with a 45°mirror, and coupling characteristics between the waveguide and the spotsize converted laser diode (SS-LD). We used polymeric optical waveguides for the substrate of O-SMT. The material of the core was ...
It is shown that the wavelength tuning range is dominated by a change of carrier density through the effect of carrier-induced refractive index change in the active layer of a laser diode. This depends on effective coupling coefficients of the optical field iteratively reflected back to the laser...
This blog will examine the significance ofDFB lasers, and also explore why these have been a good choice for telecommunication systems in recent years. What Is a DFB Laser? A DFB laser is alaser diode or optical fiber laserwith a low linewidth grating that extends throughout the cavity rathe...
an intense emission around 2.7 µm can be obtained in the triply doped LiYF4 crystal under excitation of 980 nm laser diode. Meanwhile, the near infrared emission at 1.5 µm from Er³⁺ in the triply doped crystal is effectively reduced. The possible energy transfer processes and the...
Continuous-wave and Q-switched laser operation of Yb:NaY(WO(4))(2) crystal. Diode-pumped continuous-wave (cw) and Q-switched laser operations were demonstrated, for the first time to our knowledge, with a disordered Yb:NaY(WO(4))(2... J Liu,H Zhang,J Wang,... - 《Optics Express...