Laser Diode - Common Wavelengths

Common Wavelengths

• 375 nm – excitation of Hoechst stain, Calcium Blue, and other fluorescent dyes in fluorescence microscopy
• 405 nm – InGaN blue-violet laser, in Blu-ray Disc and HD DVD drives
• 445 nm – InGaN Deep blue laser multimode diode recently introduced (2010) for use in mercury free high brightness data projectors
• 473 nm – Sky blue laser pointers, still very expensive, output of DPSS systems
• 485 nm – excitation of GFP and other fluorescent dyes
• 510 nm – (to ~525nm) Green diodes recently (2010) developed by Nichia and OSRAM for laser projectors.
• 635 nm – AlGaInP better red laser pointers, same power subjectively 5 times as bright as 670 nm one
• 640 nm – High brightness red DPSS laser pointers
• 657 nm – AlGaInP DVD drives, laser pointers
• 670 nm – AlGaInP cheap red laser pointers
• 760 nm – AlGaInP gas sensing: O₂
• 785 nm – GaAlAs Compact Disc drives
• 808 nm – GaAlAs pumps in DPSS Nd:YAG lasers (e.g. in green laser pointers or as arrays in higher-powered lasers)
• 848 nm – laser mice
• 980 nm – InGaAs pump for optical amplifiers, for Yb:YAG DPSS lasers
• 1064 nm – AlGaAs fiber-optic communication, DPSS laser pump frequency
• 1310 nm – InGaAsP, InGaAsN fiber-optic communication
• 1480 nm – InGaAsP pump for optical amplifiers
• 1512 nm – InGaAsP gas sensing: NH₃
• 1550 nm – InGaAsP, InGaAsNSb fiber-optic communication
• 1625 nm – InGaAsP fiber-optic communication, service channel
• 1654 nm – InGaAsP gas sensing: CH₄
• 1877 nm – GaSbAs gas sensing: H₂O
• 2004 nm – GaSbAs gas sensing: CO₂
• 2330 nm – GaSbAs gas sensing: CO
• 2680 nm – GaSbAs gas sensing: CO₂
• 3030 nm – GaSbAs gas sensing: C₂H₂
• 3330 nm – GaSbAs gas sensing: CH₄