Indium Phosphide Photonic Integrated Circuits for Free Space Optical Links

Zhao, Huajun; Pinna, Sergio; Song, Bowen; Megalini, Ludovico; Brunelli, Simone Tommaso Šuran; Coldren, L.A.; Klamkin, Jonathan

doi:10.1109/jstqe.2018.2866677

Cited by 38 publications

(10 citation statements)

References 17 publications

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“…The tunability of these lasers makes them tolerant to fabrication variations for an application requiring a precise wavelength target. Furthermore, InP SGDBR lasers have been demonstrated to have sufficient linewidth and side mode suppression ratio (SMSR) to meet the specifications reported in Table I [10].…”

Section: B Photonic Components and Designmentioning

confidence: 99%

Dual Laser Indium Phosphide Photonic Integrated Circuit for Integrated Path Differential Absorption Lidar

Fridlander

Sang

Rosborough

et al. 2022

IEEE J. Select. Topics Quantum Electron.

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An indium phosphide photonic integrated circuit (PIC) was demonstrated for integrated path differential absorption lidar of atmospheric carbon dioxide (CO 2 ). The PIC consists of two widely tunable sampled grating distributed Bragg reflector (SGDBR) lasers, directional couplers, a phase modulator, a photodiode, and semiconductor optical amplifiers (SOAs). One SGDBR laser, the leader, is locked to the center of an absorption line at 1572.335 nm using the on-chip phase modulator and a bench-top CO 2 Herriott reference cell. The other SGDBR laser, the follower, is stepped in frequency over ±15 GHz around 1572.335 nm to scan the target CO 2 absorption line. The follower laser is offset locked to the leader laser with an optical phase lock loop. An SOA after the follower laser generates a pulse at each frequency step to create a train of pulses that samples the target CO 2 absorption line. The PIC components and subsystem are characterized and evaluated based on target performance requirements. The leader laser demonstrated a 236-fold improvement in frequency stability standard deviation when locked compared to free running and the follower laser frequency stability standard deviation compared to the leader laser was 37.6 KHz at a 2 GHz programmed offset.

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Section: B Photonic Components and Designmentioning

confidence: 99%

Dual Laser Indium Phosphide Photonic Integrated Circuit for Integrated Path Differential Absorption Lidar

Fridlander

Sang

Rosborough

et al. 2022

IEEE J. Select. Topics Quantum Electron.

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“…Components used in ground based experiments are not automatically suitable for space and often require specialist involvement. For example, the Ferdinant-Braun Institut builds the lasers for BECCAL and MAIUS missions [752] and CERN has been involved in miniaturising radiation tolerant Indium Phosphide lasers as photonic integration circuit components [753,754]. Furthermore, in order to guarantee the long-term stability of the laser systems during the space missions' lifetime, frequency locking the laser is a necessity.…”

Section: Opticsmentioning

confidence: 99%

Quantum Physics in Space

Belenchia,

Carlesso,

Bayraktar

et al. 2021

Preprint

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Advances in quantum technologies are giving rise to a revolution in the way fundamental physics questions are explored at the empirical level. At the same time, they are the seeds for future disruptive technological applications of quantum physics. Remarkably, a space-based environment may open many new avenues for exploring and employing quantum physics and technologies. Recently, space missions employing quantum technologies for fundamental or applied studies have been proposed and implemented with stunning results.The combination of quantum physics and its space application is the focus of this review: we cover both the fundamental scientific questions that can be tackled with quantum technologies in space and the possible implementation of these technologies for a variety of academic and commercial purposes.

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“…The output during the transient stabilization can be suppressed by reducing the gain of the on-chip SOAs. Additionally, identical SGDBR lasers have been characterized by our group showing free-running linewidths of 6 MHz [22].…”

Section: B Sgdbr Laser Performancementioning

confidence: 99%

“…For the signal generation in a LiDAR system, indium phosphide (InP) provides mature PIC components and ability for active-passive integration to form an integrated transceiver [2], [5], [18]- [22]. This paper discusses the design and characterization of one such InP PIC transceiver which consists of a sampled grating distributed Bragg reflector (SGDBR) laser, a frequency discriminator based on an asymmetric Mach-Zehnder Interferometer (a-MZI) and balanced photodiodes (PD), and a receiver consisting of balanced PDs and couplers to mix the reference and echo signal.…”

mentioning

confidence: 99%

Indium Phosphide Photonic Integrated Circuit Transceiver for FMCW LiDAR

Isaac

Song

Pinna

et al. 2019

IEEE J. Select. Topics Quantum Electron.

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We present a photonic integrated circuit (PIC) transceiver for frequency modulated continuous wave (FMCW) LiDAR applications. The transmitter consists of a widely tunable sampled grating distributed Bragg reflector laser (SGDBR) and a frequency discriminator which combines multimode interference couplers, a tunable asymmetric Mach-Zehnder Interferometer (a-MZI), and balanced photodiodes. The frequency discriminator converts frequency fluctuations of the laser to amplitude fluctuations of the photodiode currents. This provides an error signal for feedback into the laser cavity for frequency stabilization. Frequency modulation is obtained by a phase shifter in the a-MZI which tunes the quadrature point of the filter and the frequency where the error is zero. An on-chip receiver couples power from the transmitter to self-heterodyne with the time-delayed echo of a distant object. The generated beat frequency of the self-heterodyne measurement gives the echo signals time-of-flight to obtain the distance and velocity of the reflecting object. The theory of the components is described, and characterization of the transmitter and receiver is presented.

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Indium Phosphide Photonic Integrated Circuits for Free Space Optical Links

Cited by 38 publications

References 17 publications

Dual Laser Indium Phosphide Photonic Integrated Circuit for Integrated Path Differential Absorption Lidar

Dual Laser Indium Phosphide Photonic Integrated Circuit for Integrated Path Differential Absorption Lidar

Quantum Physics in Space

Indium Phosphide Photonic Integrated Circuit Transceiver for FMCW LiDAR

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