1550nm single-mode VCSEL laser diode (used for 4.25Gbps high-speed communication)

1550nm tunable VCSEL vertical cavity surface emitting laser (with TEC and collimating lens)

1550nm VCSEL is a vertical emission MOVPE grown GaAsP/AlGaAs single-mode diode laser. Wavelength tuning can be achieved through laser current and temperature tuning. Built in TEC and PD.

VCSEL vertical cavity surface emitting semiconductor laser 1567/1550nm 1mW

A vertical cavity surface emitting laser (VCSEL), abbreviated as VCSEL, is a semiconductor laser that emits laser light perpendicular to the top surface. Developed based on gallium arsenide semiconductor material, different from LED (light emitting diode) and LD (laser diode). The structure consists of a mirror surface, an active layer, and a metal contact layer. The two emission mirrors are P-type and N-type Bragg emitters. The active region is composed of quantum hydrazine. A metal contact layer is made on the outer surface of the P-type DBR to form an ohmic contact, and a circular outlet is made on the P-type DBR to output laser. It has a small far-field divergence angle, and the divergence angle beam is narrow and circular; And the threshold current is low, the modulation frequency is high, and it can reach 300KHz. Wavelength tuning can be achieved by changing the laser current and temperature. Equipped with TEC and PD packaging, it is designed specifically for high-speed fiber optic communication.

1550nm VCSEL Laser Diode

Vertical-Cavity Surface-Emitting Laser, or VCSEL for short, is a semiconductor laser that emits light vertically from the top surface.Based on GaAs semiconductor material, it differs from both LEDs (Light-Emitting Diodes) and LDs (Laser Diodes).The structure consists of mirrors, an active layer, and a metal contact layer.The two emission mirrors are P-type and N-type Bragg reflectors respectively.The active region is composed of quantum wells.A metal contact layer is formed on the outer surface of the P-type DBR to provide ohmic contact,and a circular aperture is patterned on the P-type DBR for laser output.It features a small far-field divergence angle with a narrow and circular beam;low threshold current and high modulation frequency up to 300 kHz.Wavelength tuning can be achieved by varying the drive current and temperature.Packaged with built-in TEC and PD, it is specifically designed for high-speed optical fiber communications.