Towards telecommunication payloads with photonic technologies

Vono, S.; Paolo, Giampiero Di; Piccinni, Mauro; Pisano, Alessandro; Sotom, M.; Aveline, M.; Ginestet, P.

doi:10.1117/12.2304171

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…There are several examples reported in the literature of on-chip optical injection locking [21]- [22]. Nevertheless, in those works the optical injection was performed in a monolithic InP platform where the propagation losses are in the range [1,3] dB/cm, as documented in the Process Design Kits (PDKs) provided by the foundries. In contrast, a hybrid InP/Si3N4 technology has a propagation loss as small as 0.01 dB/cm [23].…”

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Investigation of the Long-Term Stability of a Local Oscillator Generator Based on InP-Si₃N₄ Laser Source for Satellite Payloads

Zarzuelo,

César,

Guzmán

et al. 2024

J. Lightwave Technol.

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We report an experimental characterization of the long-term stability of a local oscillator (LO) signal generation module for satellite communications based on the optical heterodyning of two InP/Si3N4 hybrid integrated lasers. Specifically, we analyze simultaneously the wavelength drift of both lasers in the optical domain and the electrical drift of the generated radiofrequency (RF) beat between the lasers. We identify the main factors that contribute to the overall drift such as the electrical noise coming from the supply sources, the thermal noise coming from the temperature control unit, and the thermal crosstalk between lasers. This investigation compares the stability of an RF signal generated by two approaches. Using two integrated lasers and using a combination of one integrated laser with one external laser. This work also analyzes the difference when lasers are mounted over a standard breadboard with a thermallycontrolled. The results show that the best approach is to use both integrated lasers on the same chip. We report a 25 GHz RF signal with long-term stability of 30 MHz measured over 10 hours under free-running operation mode. Moreover, we experimentally demonstrate that integrated lasers can be stabilized by using injection locking. We experimentally demonstrate the optical injection locking of two hybrid InP/Si3N4 lasers when the leader laser and the follower laser are both hybrid integrated lasers of same system on chip. When the laser is locked, we report a locking range of 1.86 GHz.

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confidence: 99%

Investigation of the Long-Term Stability of a Local Oscillator Generator Based on InP-Si₃N₄ Laser Source for Satellite Payloads

Zarzuelo,

César,

Guzmán

et al. 2024

J. Lightwave Technol.

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Passive alignment of an optical fiber on a multi-layer ceramic module for radio-over-fiber applications

Mathew

Welker

Gutzeit

et al. 2016

2016 German Microwave Conference (GeMiC)

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The low-temperature co-fired ceramics technology is a successful and space-qualified technology enabling threedimensional microwave design. Now we are pursuing an important step further towards multi-functional multi-purpose hybrid assembly technologies: combining ceramic technology with optical fiber technology. In such systems, fiber alignment is a crucial issue. Extra gadgets used for the fiber alignment make the system more complex and bulky. Considering the many features offered by the ceramic multi-layer technology for size reduction, it is advantageous to use this technology for the passive alignment of an optical fiber above the optical source. In this paper, the passive fiber alignment employing flip-chip mounting of a vertical cavity surface emitting laser in a ceramic substrate is presented. We have studied the performance of the resulting optical link with respect to figures typical for radioover-fiber applications, namely the link gain, noise figure, and the spurious-free dynamic range and compared the results with a link where the VCSEL was wire bonded to the circuit.Keywords-LTCC; analog optical link; vertical cavity surface emitting laser (VCSEL); passive fiber alignment; radio-over-fiber

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Towards telecommunication payloads with photonic technologies

Cited by 2 publications

References 2 publications

Investigation of the Long-Term Stability of a Local Oscillator Generator Based on InP-Si₃N₄ Laser Source for Satellite Payloads

Investigation of the Long-Term Stability of a Local Oscillator Generator Based on InP-Si₃N₄ Laser Source for Satellite Payloads

Passive alignment of an optical fiber on a multi-layer ceramic module for radio-over-fiber applications

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Towards telecommunication payloads with photonic technologies

Cited by 2 publications

References 2 publications

Investigation of the Long-Term Stability of a Local Oscillator Generator Based on InP-Si3N4 Laser Source for Satellite Payloads

Investigation of the Long-Term Stability of a Local Oscillator Generator Based on InP-Si3N4 Laser Source for Satellite Payloads

Passive alignment of an optical fiber on a multi-layer ceramic module for radio-over-fiber applications

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Investigation of the Long-Term Stability of a Local Oscillator Generator Based on InP-Si₃N₄ Laser Source for Satellite Payloads

Investigation of the Long-Term Stability of a Local Oscillator Generator Based on InP-Si₃N₄ Laser Source for Satellite Payloads