Photonic crystal surface emitting laser diode (PCSEL)
This product is a surface-emitting semiconductor laser with a photonic crystal structure that features a narrow spot beam pattern (narrow beam spread angle, circular shape) and a narrow spectral linewidth. The photonic crystal is an optical nanostructure having a periodic refractive index distribution with dimensions nearly equal to the light wavelengths. In this product, light is amplified and diffracted by the photonic crystal mounted in the vicinity of a light amplification layer called an active layer, and the amplified light is output as a laser beam in a direction perpendicular to the surface. Even with a large area, this laser allows a stable resonance action and so delivers a high quality beam with a narrow radiant angle.
|Operating temperature||0 ℃ to +30 ℃|
|Storage temperature||-30 ℃ to +85 ℃|
|Peak emission wavelength typ.||940 nm|
|Radiant output power max.||200 mW|
|Radiant output power typ.||150 mW|
|Operating current max.||850 mA|
|Spectral radiation half bandwidth max.||1 nm|
|Operating voltage max.||2 V|
|Emitting area||200 × 200 μm|
|Beam spread angle (Horizontal) max.||1 °|
|Beam spread angle (Vertical) max.||1 °|
|Lasing threshold current typ.||250 mA|
*Example of temperature characteristic of peak emission wavelength (condition: 940 nm, 25 ℃)
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