A3PICs GmbH

Vienna, Austria

A3PICs GmbH

Vienna, Austria
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Atef M.,Vienna University of Technology | Gaberl W.,Vienna University of Technology | Swoboda R.,A3PICs GmbH | Zimmermann H.,Vienna University of Technology
Analog Integrated Circuits and Signal Processing | Year: 2011

A BiCMOS integrated optical receiver with high sensitivity and good linearity is presented. An automatic gain control transimpedance amplifier (TIA) and linear post amplifiers are used to maintain a high linearity with multilevel modulation. Using multilevel signaling and large-diameter integrated photodiodes make the presented optical receiver suitable for small-bandwidth high-attenuation large-core PMMA step index plastic optical fiber. A measured sensitivity of -31 dBm (BER = 10-9) at 250 Mb/s is presented for a binary signal. A data rate of 500 Mb/s and a sensitivity of -25 dBm (BER = 10-9) are achieved with four-level pulse amplitude modulation (4-PAM). An error-free transmission over 40 m PMMA step index plastic optical fiber was achieved at 500 Mb/s using 4-PAM signaling with the presented multilevel optical receiver. © 2010 Springer Science+Business Media, LLC.


Atef M.,Vienna University of Technology | Swoboda R.,A3PICs GmbH | Zimmermann H.,Vienna University of Technology
Electronics Letters | Year: 2012

A high-speed transmission over step-index plastic optical fibre (SI-POF) using a resonant cavity light emitting diode (RCLED) is described. The integrated optical receiver is realised in 0.6m BiCMOS technology with an integrated large-area Si photodiode. The design consists of a TIA, equaliser and post-amplifier stage followed by a 50Ω output driver. The integrated equaliser can be adapted via an external control voltage to different SI-POF lengths and RCLED limited bandwidths. A data rate of 250Mbit/s can be transmitted over a 50m-long SI-POF with a sensitivity of -22dBm at BER of 10 -9 and over a 100m-long SI-POF with a sensitivity of -24dBm at a BER of 10 -6. © 2012 The Institution of Engineering and Technology.


Atef M.,Vienna University of Technology | Swoboda R.,A3PICs GmbH | Zimmermann H.,Vienna University of Technology
IEEE Photonics Technology Letters | Year: 2012

A real-time 1.25-Gb/s transmission over a 50-m step-index plastic optical fiber (SI-POF) with -12.5-dBm sensitivity at bit error rate equal to 10 -9 was achieved. The binary modulated signal was received and post-equalized using a fully integrated optical receiver. A green edge-emitting laser diode with 520 nm is used, which gives a lower attenuation over POF compared to the traditional 650-nm red laser. The launched optical power is 1 dBm, which ensures eye-safety (class 1 M) with 6-dB power margin. © 2012 IEEE.


Atef M.,Vienna University of Technology | Swoboda R.,A3PICs GmbH | Zimmermann H.,Vienna University of Technology
Optics Communications | Year: 2011

An optical receiver having a high linearity is used for multilevel communication over standard step plastic optical fiber. A large-diameter photodiode with an antireflection coating optimized for red light was integrated. These features enable the used optical receiver to be a promising plastic optical fiber receiver. An error free (< 10-8) 170 Mb/s data rate over 115 m standard PMMA step-index plastic optical fiber is achieved with four-level and eight-level pulse amplitude modulation. © 2010 Elsevier B.V. All rights reserved.


Atef M.,Vienna University of Technology | Swoboda R.,A3PICs GmbH | Zimmermann H.,Vienna University of Technology
Optics Communications | Year: 2010

An optical receiver with high sensitivity and linearity specially designed for Giga-bit communications over small-bandwidth high-attenuation multimode plastic optical fiber is presented. An automatic gain control transimpedance amplifier and linear post amplifiers are used to maintain a good performance with multilevel modulation. Using multilevel signaling and large-diameter integrated photodiodes make the presented optical receiver suitable for large core plastic optical fiber. For a wavelength of 675 nm, a sensitivity of -26.3 dB m (BER = 10-9) at 500 Mb/s is presented by a binary signal. A data rate of 1 Gb/s and a sensitivity of -19.8 dB m (BER = 10-9) are achieved with four-level pulse amplitude modulation. © 2009 Elsevier B.V. All rights reserved.


Atef M.,Vienna University of Technology | Swoboda R.,A3PICs GmbH | Zimmermann H.,Vienna University of Technology
Optics Communications | Year: 2010

An optical receiver with automatic-gain-control transimpedance amplifier, linear post amplifier and linear line driver suitable for multilevel signals is presented. A large-diameter photodiode (400 μm) with an antireflection coating optimized for red light was integrated. These features enable the presented optical receiver to be a promising plastic optical fiber receiver. An error free (<10-8) 400 Mbit/s data rate over 50 m PMMA-step index plastic optical fiber (1 mm diameter) is achieved with eight-level pulse amplitude modulation (8-PAM). © 2010 Elsevier B.V. All rights reserved.


Atef M.,Vienna University of Technology | Swoboda R.,A3PICs GmbH | Zimmermann H.,Vienna University of Technology
Journal of Lightwave Technology | Year: 2012

A single-chip optical receiver with an integrated equalizer is used to achieve a high performance gigabit transmission over step-index plastic optical fiber (SI-POF). The integrated equalizer can compensate for different POF lengths up to 50 m. The integrated optical receiver is fabricated in a low-cost silicon 0.6 μ m BiCMOS technology and has a power consumption of 100 mW. Real-time transmission at data rates of 1.8 Gbit/s over 20 m SI-POF and 1.25 Gbit/s over 50 m SI-POF with high sensitivities and BER of 10 -9 is achieved. The optical transmitter is based on an edge emitting laser. © 2006 IEEE.


Paraskevopoulos A.,Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut | Vucic J.,Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut | Voss S.-H.,Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut | Swoboda R.,A3PICs GmbH | Langer K.-D.,Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut
IEEE/ASME Transactions on Mechatronics | Year: 2010

For future short- and mid-range industrial applications, optical wireless (OW) communication systems are expected to play a major role. When moderate transmission rates (100 Mb/s range) are required, OW communications present a viable and promising technology, supplemental to conventional radio wireless systems. Advanced approaches based on diversity techniques and adaptive signal processing show potential to achieve both high spatial coverage and high bit rates of more than 100 Mb/s. Visible-light communication systems using white phosphorescent LEDs equally present an interesting application potential, combining illumination with data transfer. When high data volumes (100 Gb/s range) need to be transmitted, tailored optical data links provide a solution of choice. Exemplarily, a scalable (24140 Gb/s) optical data link is presented, developed for future implementation in maskless lithography systems. The link comprises a high-speed data buffer with synchronizable architecture and scalable throughput ( N× 24Gb/s), an optical free-space transmission solution, and finally, a 45-channel low-noise optical receiver chip based on BiCMOS 0.6$\mu$m technology. © 2006 IEEE.


Atef M.,Vienna University of Technology | Swoboda R.,A3PICs GmbH | Zimmermann H.,Vienna University of Technology
European Conference on Optical Communication, ECOC | Year: 2010

1Gbit/s transmission with four-level pulse amplitude modulation over low cost 20m PMMA step-index plastic optical fiber at a BER of 10-8 was achieved by using an integrated optical receiver designed for multilevel signalling. ©2010 IEEE.


Atef M.,Vienna University of Technology | Swoboda R.,A3PICs GmbH | Zimmermann H.,Vienna University of Technology
Electronics Letters | Year: 2010

A high-linearity optical receiver with background-light-AGC for high PAPR signals is presented. The integrated BiCMOS optical receiver consists of a TIA with AGC, a linear amplifier and a line driver. The receiver THD is 1.7 and the third-order intermodulation is 50dBc at 20MHz and at an input optical power of -3.5dBm. The third-order intermodulation decreases to 40dBc at 100MHz. © 2010 The Institution of Engineering and Technology.

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