Development, testing, and initial space qualification of 1.5-μm high-power (6W) pulse-position-modulated (PPM) fiber laser transmitter for deep-space laser communication

Gupta, Shantanu; Engin, Doruk; Pachowicz, Dave; Fouron, Jean-Luc; Lander, Juan; Dang, Xung; Litvinovich, Slava; Chuang, Ti; Puffenberger, Kent; Kimpel, Frank; Utano, Rich; Wright, Malcolm W.

doi:10.1117/12.2213661

Cited by 10 publications

(9 citation statements)

References 2 publications

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“…The laser transmitter consists of a seed laser and an erbium dopped fiber amplifier (EDFA) at 1.55 μm wavelength. It was originally designed for transmitting a 64-ary pulse position modulation (PPM) signal at up to 6-W average output power [ 56 ]. The laser pulse width, pulse rate, and output power are comparable to those required by SALi.…”

Section: Sali Instrument Design and Expected Performancementioning

confidence: 99%

Small All-Range Lidar for Asteroid and Comet Core Missions

Sun

Cremons

Mazarico

et al. 2021

Sensors

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We report the development of a new type of space lidar specifically designed for missions to small planetary bodies for both topographic mapping and support of sample collection or landing. The instrument is designed to have a wide dynamic range with several operation modes for different mission phases. The laser transmitter consists of a fiber laser that is intensity modulated with a return-to-zero pseudo-noise (RZPN) code. The receiver detects the coded pulse-train by correlating the detected signal with the RZPN kernel. Unlike regular pseudo noise (PN) lidars, the RZPN kernel is set to zero outside laser firing windows, which removes most of the background noise over the receiver integration time. This technique enables the use of low peak-power but high pulse-rate lasers, such as fiber lasers, for long-distance ranging without aliasing. The laser power and the internal gain of the detector can both be adjusted to give a wide measurement dynamic range. The laser modulation code pattern can also be reconfigured in orbit to optimize measurements to different measurement environments. The receiver uses a multi-pixel linear mode photon-counting HgCdTe avalanche photodiode (APD) array with near quantum limited sensitivity at near to mid infrared wavelengths where many fiber lasers and diode lasers operate. The instrument is modular and versatile and can be built mostly with components developed by the optical communication industry.

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Section: Sali Instrument Design and Expected Performancementioning

confidence: 99%

Small All-Range Lidar for Asteroid and Comet Core Missions

Sun

Cremons

Mazarico

et al. 2021

Sensors

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“…Erbium (Er)-doped optical fiber amplifiers (EDFA) rapid development in the 1550-nm band has caused different Er and ytterbium (Yb)-doped (EYDFAs) and 1550-nm EDFAs optical fiber amplifiers to experience sensational improvements [1]. In specific, for high energy applications EYDFAs are vital, counting long-distance optical communications [2]. As of late, EYDFAs have moreover been utilized in modern specialized areas, such as ultrahigh-repetition-rate beat sources [3].…”

Section: Introductionmentioning

confidence: 99%

“…Where χ (l) (l = 1, 2…) is l th order susceptibility and permittivity of vacuum is given by ε0. The linear susceptibility χ (1) provides the dominant contribution to P. For sum-frequency generation and second harmonic generation, the second-order susceptibility χ (2) is responsible. χ (2) vanishes for a symmetrical molecule like silica.…”

Section: Introductionmentioning

confidence: 99%

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A Comparative Study of SPM and XPM in Er-Yb Co-Doped Fiber

Kumar

Qazi

2021

J. Electron. Mater.

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Optical fiber communication has been the most versatile and revolutionary medium of communication that has helped in connecting millions of people across the globe. These traits have seen tremendous development in the sector of optical fiber communication. There are now many desired qualities that are expected out of an optical fiber communication like large transmission capacity and a lesser amount of losses. Communication systems operating with higher transmission rates have found an essential role of non-linear fiber optics. The behaviour of light in non-linear media is dealt with non-linear optics. Cross-Phase Modulation (XPM) and Self-Phase Modulation (SPM) are a few non-linearities occurring in the optical fiber. Non-linear effects reduce the performances of optical fibers. In this paper, a comparative study of non-linear effects in Er-Yb co-doped Fiber are reviewed using simulation and the results are compared with optical systems utilizing normal fiber. Benefits of utilizing Er-Yb fiber has been demonstrated by analysing effective systems comprising the Er-Yb co-doped fiber and their ability to mitigate the non-linearities.

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“…The latter offers very high power levels and very good beam quality [28][29][30], but they are sensitive to radiation. A new generation of high brightness semiconductor lasers based on tapered geometry has demonstrated relatively high average power levels together with good beam quality [7].…”

Section: Motivationmentioning

confidence: 99%

Emission characteristics of 1.5 um monolithically integrated master oscillator power amplifiers

Suárez¹,

Fernánda²

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The present work is a study of the emission characteristics of monolithic semiconductor Master Oscillator Power Amplifiers (MOPAs) relevant for their use in applications requiring simultaneously high brightness and high spectral purity semiconductor laser sources. Two types of laser devices with wavelengths ranging between 1540 nm and 1580 nm have been studied: Commercial two-section MOPAs and three-section MOPAs specially designed for their use as optical sources for Differential Absorption LIDAR. The spectral analysis of the behavior of the two-section MOPAs revealed the occurrence of undesired spectral instabilities in large ranges of driving conditions precluding their use in applications requiring stable and narrow linewidth emission. A detailed experimental analysis of the stable and unstable emission regimens has been complemented with a theoretical analysis using a Travelling Wave model. From both approaches the instabilities have been attributed to dynamic effects induced by the optical feed-back allowed by the unavoidable residual reflectivity of the front facet and mediated by self-and cross-heating effects. The three-section MOPAs have been demonstrated to be free of spectral instabilities in a large range of driving conditions. The operation of these devices under the modulation conditions required for the intended application has been demonstrated. Their emission characteristics under modulation have been analyzed paying special attention to the modulation induced spectral broadening. Evidence of a frequency modulation contribution to the broadening has been shown. The frequency modulation induced by the modulation amplitude has been attributed to the refractive index changes induced by the carrier density modulation, induced in turn by the modulating current.The work is structured in 6 chapters. In the introductory Chapter 1 the work is motivated and framed in the research line of the group. The potential of MOPAs for high brightness applications is illustrated in the case of three applications: free space optical communications, wind Lidar and Lidar for remote sensing of atmospheric gases. In Chapter 2 the main ingredients on laser diodes necessary for the proper understanding of the rest of the work are briefly summarized. The chapter includes a brief description of two concepts for increasing the brightness of semiconductor sources: tapered lasers and monolithically integrated MOPAs. A review of the state of the art in integrated semiconductor MOPAs is also included.The details of the two-section straight MOPAs and three-section bent MOPAs investigated in this work as well as a description of the experimental techniques used for their characterization are provided in Chapter 3. Specific relevance is given to the description of those set-ups and experimental techniques that were implemented or developed as a part of this work, such as the set-up for driving unmounted multi-section lasers and systematically recording the maps of the optical and Radio-Frequency (RF) spectra, the implementa...

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Development, testing, and initial space qualification of 1.5-μm high-power (6W) pulse-position-modulated (PPM) fiber laser transmitter for deep-space laser communication

Cited by 10 publications

References 2 publications

Small All-Range Lidar for Asteroid and Comet Core Missions

Small All-Range Lidar for Asteroid and Comet Core Missions

A Comparative Study of SPM and XPM in Er-Yb Co-Doped Fiber

Emission characteristics of 1.5 um monolithically integrated master oscillator power amplifiers

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