A 850nm superluminescent diode module (SLD) with the structure of miniature 6 pin horizontal shells was introduced. Fully being metalized by laser welding, the module volume is reduced to be half the volume of standard 8 pin butterfly package through optimal structure design. The module at 100mA operating current is characterized by the coefficients of over 1.5mW output power, over 20nm spectral width and below 0.5dB ripple, which makes the normal operating temperature range from -50℃ to 75℃ and the storage temperature range from -60℃ to 100℃ when highly effective miniature TE cooler is choosen.
