Dr. Charlotte Bringer Profile

Dr. Charlotte Bringer

at European Space Research and Technology Ctr

SPIE Involvement:

Author

Publications (8)

Proceedings Article | 12 July 2023 Open Access

Optoelectronics parts NewSpace qualification aboard FOLC2 optical modem mission

Anna Salomon, Louis Bouet, Stéphane Mariojouls, Clement Guyot, Joël Cabrel Tchahame Nougnihi, Arnaud Laurent, Stéphane Ustaze, Raphaël Cousty, Thomas Schmitt, Olivier Gilard, Charlotte Bringer

Proceedings Volume 12777, 127774L (2023) https://doi.org/10.1117/12.2690851

KEYWORDS: Optics manufacturing, Optoelectronics, Optical isolators, Manufacturing, Photodiodes, Optical fibers, Standards development, Astronomical imaging, Wavelength division multiplexing, Vacuum

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 11 June 2021 Open Access

Space qualification of a 10W single-mode PM optical amplifiers in the 1.5-µm region

Emile Haddad, Hamid Limodehi, QiYang Peng, Kamel Tagziria, Ali Saffarpour, Francois Gonthier, Viorel Poenariu, Piotr Murzionak, Greg Schinn, Nikos Karafolas, Charlotte Bringer

Proceedings Volume 11852, 118521Y (2021) https://doi.org/10.1117/12.2599332

Read Abstract +

MPB has developed a 10W Polarization Maintaining Optical Fiber amplifier (1550 nm) for space applications. The prototype is based on three stages of optical amplification with photodiodes at each stage, monitoring the output power. It includes the control electronics and software with feedback loops to dynamically control and monitor the amplifier. The design had to overcome many challenges to comply with the mechanical, thermal, radiation, and vacuum requirements for the LEO satellite space environment, while at the same time meeting the price targets for LEO constellations by maximizing the use of commercial off the shelf (COTS) components. The following were the main challenges: a) to effectively dissipate the heat generated (75-90 W); b) to select radiationtolerant electronics to drive the needed electrical current; c) to source and effectively implement components, such as the combiners and isolators, in the high power optical path compatible with vacuum at 10W output. The major challenge with regard to heat management was to find an optimal method to dissipate the heat from the third stage (high power) Erbium Ytterbium Doped Fiber. Commonly, this fiber is spooled on an Aluminium spool. The difference in the Constant Temperature Extension (CTE) between the fiber (low) and Aluminium (high) leads to a detachment of the fiber at low temperature with a high risk of breaking the fiber when passing from OFF to ON. At high temperatures, the Aluminium extends much more than the fiber, leading to an over tension on the fiber with a high risk of mechanical breakage. Different designs of the spool, supports inside the box, selection of materials, and process implementations were tried. An innovative, proprietary method was developed to satisfy this requirement. The unit successfully passed performance testing between -20°C and +40°C in vacuum with 10W output, with a wall plug efficiency of 11%. The lower temperature limitation was due to the specification of the high-power laser diodes. The higher temperature was limited by the local heating and risk of mechanical breaking of the third-stage COTS combiner and isolator. Vibration and mechanical shock are not foreseen to be an issue. The simulation demonstrated the prototype is complying with these requirements. Moreover, MPB has built similar instruments at lower power levels that have successfully passed these qualification tests. The components used were available as COTS products, including the radiation-tolerant electronics. All the components were qualified individually for >30 krad, in vacuum, and for the temperature range -35°C to +65°C except for the highpower laser diodes which were limited to -25°C. MPBC is continuing the qualification, implementing minor design changes, in order to satisfy the complete temperature range (-35°C to +65°C).

DOWNLOAD PAPER

Proceedings Article | 12 July 2019 Open Access

Round Table 2: The challenge of photonic components Space qualification, is there a better way?

Charlotte Bringer

Proceedings Volume 11180, 111803W (2019) https://doi.org/10.1117/12.2536059

KEYWORDS: Astronomical imaging

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 12 July 2019 Open Access

10W single-mode PM optical amplifiers in the 1.5 μm for space applications

Emile Haddad, François Gonthier, QiYang Peng, Viorel Poenariu, Kamel Tagziria, Jonathan Lavoie, Piotr Murzionak, Gregory Schinn, Nikos Karafolas, Charlotte Bringer

Proceedings Volume 11180, 1118035 (2019) https://doi.org/10.1117/12.2536032

KEYWORDS: Semiconductor lasers, Diodes, Optical amplifiers, Optical isolators, Scattering, Signal attenuation, Gamma radiation, Satellites, Photodiodes, Epoxies

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 13 October 2005 Paper

Integrated optical detection subsystem for functional genomic analysis biosensor

Corinne Vergnenègre, Thierry Camps, Véronique Bardinal, Charlotte Bringer, Chantal Fontaine, Antonio Muñoz-Yagüe

Proceedings Volume 5969, 596912 (2005) https://doi.org/10.1117/12.628297

KEYWORDS: Vertical cavity surface emitting lasers, Biosensors, Chemical elements, Optical testing, Integrated optics, Optical components, Laser sources, Biological research, Sensors, Silicon

Read Abstract +

Proceedings Article | 8 September 2004 Paper

Detection of lateral spontaneous emission for VCSEL monitoring

Charlotte Bringer, Veronique Bardinal, Emmanuelle Daran, Thierry Camps, Yann G. Boucher, Guilhem Almuneau, Olivier Gauthier-Lafaye, Pascal Dubreuil, Jean-Baptiste Doucet, Chantal Fontaine

Proceedings Volume 5453, (2004) https://doi.org/10.1117/12.545568

KEYWORDS: Vertical cavity surface emitting lasers, Photodetectors, Waveguides, Optical testing, Quantum wells, Optoelectronics, Laser damage threshold, Etching, Sensors, Signal attenuation

Read Abstract +

Proceedings Article | 18 February 2004 Paper

Integrated optical coupling element for functional genomic analysis biosensor

Corinne Vergnenegre, Charlotte Bringer, Veronique Bardinal, Thierry Camps, Chantal Fontaine, Antonio Munoz-Yague

Proceedings Volume 5249, (2004) https://doi.org/10.1117/12.513289

KEYWORDS: Optical components, Vertical cavity surface emitting lasers, Chemical elements, Integrated optics, Biosensors, Microfluidics, Gaussian beams, Biological research, Head, Sensors

Read Abstract +

Proceedings Article | 15 April 2003 Paper

Dual-purpose single-cavity oxide-confined VCSEL photodetector

Charlotte Bringer, Veronique Bardinal, Chantal Fontaine, Laurent Averseng, Thierry Camps, Pascal Dubreuil, Antonio Munoz-Yague

Proceedings Volume 4942, (2003) https://doi.org/10.1117/12.468475

KEYWORDS: Vertical cavity surface emitting lasers, Reflectivity, Etching, Oxides, Photodetectors, Aluminum, Quantum efficiency, Gallium, Sensors, Optical interconnects

Read Abstract +

Showing 5 of 8 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years