Abstract
We report for the first time the successful wavelength stabilization of two hybrid integrated InP/Polymer DBR lasers through optical injection. The two InP/Polymer DBR lasers are integrated into a photonic integrated circuit, providing an ideal source for millimeter and Terahertz wave generation by optical heterodyne technique. These lasers offer the widest tuning range of the carrier wave demonstrated to date up into the Terahertz range, about 20 nm (2.5 THz) on a single photonic integrated circuit. We demonstrate the application of this source to generate a carrier wave at 330 GHz to establish a wireless data transmission link at a data rate up to 18 Gbit/s. Using a coherent detection scheme we increase the sensitivity by more than 10 dB over direct detection.
Highlights
To date, most wireless data transmission demonstrations reporting data rates beyond 10 Gbit/s employed carrier wave frequencies above 100 GHz generated with photonic techniques[3]
To the best of our knowledge we present for the first time a Terahertz wireless link in which a 330 GHz carrier wave is generated using an optical heterodyne signal source based on two tunable hybrid InP/Polymer distributed Bragg reflector (DBR) lasers from a hybrid polymer integration platform
With regard to the used hybrid InP/Polymer DBR lasers, a schematic of the structure is presented in Fig. 1(a), showing a dual wavelength source integrating two tunable hybrid InP/Polymer DBR lasers using an InP-based active chip and a Polymer-based passive chip
Summary
Guillermo Carpintero[1], Shintaro Hisatake[2], David de Felipe[3], Robinson Guzman[1], Tadao Nagatsuma4 & Norbert Keil[3]. Spectrally pure electrical signal is desired, this requires that only two wavelengths be derived from the OFCG output This is the approach recently used to generate a carrier wave at 237.5 GHz for a wireless communication system, transmitting at 100 Gbit/s, the highest reported to date[6]. Compact and light millimeter-wave transmitter front-ends have been demonstrated based on integrated optical heterodyne signal generation using different integration technology platforms, monolithic InP PICs11 and heterogeneous silicon-InP12, integrating two tunable lasers, showing a tuning range about 100 GHz. To the best of our knowledge we present for the first time a Terahertz wireless link in which a 330 GHz carrier wave is generated using an optical heterodyne signal source based on two tunable hybrid InP/Polymer distributed Bragg reflector (DBR) lasers from a hybrid polymer integration platform. We demonstrate for first-time wavelength stabilization of the tunable hybrid InP/Polymer distributed Bragg reflector (DBR) lasers through optical injection and their use within a coherent wireless transmission link
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