Request InfoPower Technology Inc.Power Technology Inc. has developed the Concerto, a 442-nm solid-state HeCd replacement laser that delivers up to 150 mW of actively stabilized single-frequency light with a spectral bandwidth <5 MHz. The instrument has a mean time before failure of >12,000 h, compared with a typical HeCd laser, which requires retubing every 3000 h, depending on the original power output. Typical coherence length is 100 m. 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