title: Design and demonstration of ultra-fast W-band photonic transmitter-mixer and detectors for 25 Gbits/sec error-free wireless linking.
abstract: A 25 Gbits/s error-free on-off-keying (OOK) wireless link between an ultra high-speed W-band photonic transmitter-mixer (PTM) and a fast W-band envelope detector is demonstrated. At the transmission end, the high-speed PTM is developed with an active near-ballistic uni-traveling carrier photodiode (NBUTC-PD) integrated with broadband front-end circuitry via the flip-chip bonding technique. Compared to our previous work, the wireless data rate is significantly increased through the improvement on the bandwidth of the front-end circuitry together with the reduction of the intermediate-frequency (IF) driving voltage of the active NBUTC-PD. The demonstrated PTM has a record-wide IF modulation (DC-25 GHz) and optical-to-electrical fractional bandwidths (68-128 GHz, ~67%). At the receiver end, the demodulation is realized with an ultra-fast W-band envelope detector built with a zero-bias Schottky barrier diode with a record wide video bandwidth (37 GHz) and excellent sensitivity. The demonstrated PTM is expected to find applications in multi-gigabit short-range wireless communication.
authors.affiliation: Department of Communications Engineering, Yuan Ze University, Jhongli 320, Taiwan.
authors.forename: Nan-Wei
authors.initials: NW
authors.lastname: Chen
authors.forename: Jin-Wei
authors.initials: JW
authors.lastname: Shi
authors.forename: Hsuan-Ju
authors.initials: HJ
authors.lastname: Tsai
authors.forename: Jhih-Min
authors.initials: JM
authors.lastname: Wun
authors.forename: Fong-Ming
authors.initials: FM
authors.lastname: Kuo
authors.forename: Jeffery
authors.initials: J
authors.lastname: Hesler
authors.forename: Thomas W
authors.initials: TW
authors.lastname: Crowe
authors.forename: John E
authors.initials: JE
authors.lastname: Bowers