Yes, this looks like DL combined with BB! A first poetic product - not yet POET!

This is an uncooled DFB laser diode operating with an output power of 5mW at 25°C at the 1310nm wavelength and engineered for transmission up to 2.5Gbps. It operates over a wide temperature range from -10°C to 85°C without any need for a Peltier cooler and temperature controller. 
B. FEATURES
--Uncooled operation from -10 to 85°C
--Output power of 5mW at 25°C, Ith+20mA (typical)
--Lasing wavelength of 1310nm
--Typical SMSR ≥ 35dB
--Designed for 2.5Gbps high speed transmission
C. PACKAGING
--DFB Laser diode die (chip) with coated facets
D. APPLICATIONS
--Uncooled PON Applications
--FTTx Networks