Applied Optoelectronics DFB-934-BT-06-2.5-C-LR-FA-503 DFB Laser

The Applied Optoelectronics AOI DFB-934-BT-06-2.5-C-LR-FA-503 DFB Laser is a distributed feedback laser diode from Applied Optoelectronics that emits at 193.4 THz, corresponding to about 1550.12 nm, with an optical output power of 6 mW. This telecom-oriented DFB laser is designed for light-source applications in fiber-optic systems requiring operation in the C-band. The model name encodes a specific AOI variant—DFB-934 with the BT-06-2.5-C-LR-FA-503 configuration—commonly cataloged by distributors to designate that exact packaging/configuration. In practice, lasers of this class serve as transmitter or test-source components in telecom, sensing, and photonics setups that leverage the 1550 nm window. The 193.4 THz frequency maps to a center wavelength near 1550 nm, aligning with standard 1550 nm operation used in many fiber networks.