A Dedicated L3Vision CCD for Adaptive Optics Applications

Downing, Mark; Hubin, N.; Kasper, Markus; Jorden, Paul; Pool, P.; Denney, Sandy; Suske, Wolfgang; Burt, David; Wheeler, Pat; Hadfield, Kevin; Feautrier, Philippe; Gach, Jean-Luc; Reyes, Javier Escalera; Meyer, Manfred; Baade, D.; Balard, Philippe; Guillaume, Christian; Stadler, Eric; Boissin, Olivier; Fusco, Thierry; Díaz, J. J.

doi:10.1007/1-4020-4330-9_35

Cited by 14 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…CCDs are inherently unable to provide accurate measurements of such fast lowintensity transients at high frame rates, whereas monolithic solid-state arrays of photon counters would be suitable. While high-sensitivity CCDs are being developed by industry [4] and some applications resorted to the use of a set of discrete SPADs [5], monolithic array of single-photon detectors are not yet available to either scientific community or industry.…”

Section: Single-photon Detectionmentioning

confidence: 99%

See 1 more Smart Citation

Principles and features of single-photon avalanche diode arrays

Zappa

Tisa

Tosi

et al. 2007

Sensors and Actuators A: Physical

287

235

View full text Add to dashboard Cite

Section: Single-photon Detectionmentioning

confidence: 99%

“…EM-CCDs exploit internal multiplication process to achieve sub-electron readout noise and thus being able to detect single photons [4]. Their quantum efficiency is very high, and they are inherently suited for imaging applications.…”

Section: Single-photon Detectionmentioning

confidence: 99%

Principles and features of single-photon avalanche diode arrays

Zappa

Tisa

Tosi

et al. 2007

Sensors and Actuators A: Physical

287

235

View full text Add to dashboard Cite

“…General structure CCD219 was the name chosen by e2v technologies for this detector. The CCD219 is a derivative of the CCD220 [2], [3], [4] (schematic in Figure 1) which is a 24 µm square 240x240 pixels split frame transfer back illuminated L3Vision CCD. The image and store area (store is optically shielded) are built with 2-phase metal-buttressed parallel clock structures to enable fast line shifts in excess of 7 Mlines/s for total transfer time from image to store of 18 µs and low smearing of under 2% at 1,200 fps.…”

Section: The Ccd219 Designmentioning

confidence: 99%

“…Numerous European astronomy institutions have teamed up in the OPTICON network [3], and obtained funds in the Joint Research Activity JRA2, "Fast Detectors for Adaptive Optics", from the European Commission to support the massive R&D effort to develop new detectors for adaptive optics applications. This development was jointly funded by ESO and OPTICON.…”

Section: Introductionmentioning

confidence: 99%

OCAM2S: an integral shutter ultrafast and low noise wavefront sensor camera for laser guide stars adaptive optics systems

et al. 2014

Self Cite

View full text Add to dashboard Cite

To date, the OCAM2 system has demonstrated to be the fastest and lowest noise production ready wavefront sensor, achieving 2067 full frames per second with subelectron readout noise. This makes OCAM2 the ideal system for natural as well as continuous wave laser guide star wavefront sensing. In this paper we present the new gated version of OCAM2 named OCAM2-S, using E2V's CCD219 sensor with integral shutter. This new camera offers the same superb characteristics than OCAM2 both in terms of speed and readout noise but also offers a shutter function that makes the sensor only sensitive to light for very short periods, at will. We will report on gating time and extinction ratio performances of this new camera. This device opens new possibilities for Rayleigh pulsed lasers adaptive optics systems. With a shutter time constant well below 1 microsecond, this camera opens new solutions for pulsed sodium lasers with backscatter suppression or even spot elongation minimization for ELT LGS. This camera has been successfully used for the first time on the CANARY instrument on the William Herschel Telescope. The final phase of CANARY is a demonstrator of a single MOAO channel for the proposed EAGLE instrument on the future European ELT. We will report on-sky performance with this instrument.

show abstract

“…The CCD220 8,9,10 (schematic in Fig. 2) is a 24 µm square 240x240 pixels split frame transfer back illuminated L3Vision CCD.…”

Section: The Ccd220 Designmentioning

confidence: 99%

The L3Vision CCD220 with its OCam test camera for AO applications in Europe

Feautrier¹,

Gach

Balard

et al. 2008

SPIE Proceedings

Self Cite

View full text Add to dashboard Cite

ESO and JRA2 OPTICON have jointly funded e2v technologies to develop a custom CCD for Adaptive Optic Wave Front Sensor (AO WFS) applications. The device, called CCD220, is a compact Peltier-cooled 240x240 pixel frametransfer 8-output back-illuminated sensor. Using the electron-multiplying technology of L3Vision detectors, the device is designed to achieve sub-electron read noise at frame rates from 25 Hz to 1,500 Hz and dark current lower than 0.01 e-/pixel/frame. The development has many unique features. To obtain high frame rates, multiple EMCCD gain registers and metal buttressing of row clock lines are used. The baseline device is built in standard silicon. In addition, two speculative variants have been built; deep depletion silicon devices to improve red response and devices with an electronic shutter to extend use to Rayleigh and Pulsed Laser Guide Star applications. These are all firsts for L3Vision CCDs.These CCD220 detectors have now been fabricated by e2v technologies. This paper describes the design of the device, technology trade-offs, and progress to date. A Test Camera, called "OCam", has been specially designed and built for these sensors. Main features of the OCam camera are extensively described in this paper, together with first light images obtained with the CCD220.

show abstract

A Dedicated L3Vision CCD for Adaptive Optics Applications

Cited by 14 publications

References 4 publications

Principles and features of single-photon avalanche diode arrays

Principles and features of single-photon avalanche diode arrays

OCAM2S: an integral shutter ultrafast and low noise wavefront sensor camera for laser guide stars adaptive optics systems

The L3Vision CCD220 with its OCam test camera for AO applications in Europe

Contact Info

Product

Resources

About