Laser diode array comprising a serial circuit made of pairs of a laserdiode and a bypass diode in parallel

摘要: A semiconductor laser device in a semiconductor-laser excited solid-state apparatus is provided with plurality of diodes (10) connected series to one another. Each bypass (60) parallel each diode or group at least two the and has higher rising voltage than parallel-connected diodes. The polarity end semiconductors same as that associated which other diode. This structure accomplish continuous light emission simple compactable circuit even if more are disconnected, thereby making highly reliable.