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We demonstrate a two-element symmetric-connected photodiode array (SC-PDA) for high-power and high-speed applications. A traditional traveling-wave photodiode array (TW-PDA), an SC-PDA, and a single PD with the same epitaxial structure were fabricated and tested. Both the TW-PDA and SC-PDA have higher saturation currents, larger RF power, and better high-power and high-frequency responses than the...
We designed and optimized a high-speed, low-loss electrodes applied to photodiode array (PDA) using simulating software HFSS. Optimized and un-optimized electrodes were fabricated and tested. A 1.1dB reduce of the insertion loss at 40GHz was achieved by the optimization. Meanwhile, photodiode array implementing the optimized electrodes has a 6.6GHz higher 3dB-bandwidth comparing to the photodiode...
In this paper, the high-speed modified uni-traveling-carrier photodiode (MUTC-PD) was designed and fabricatedfor low reverse bias. The 3-dB bandwidth and responsivity of MUTC-PD with 24-μm mesa diameter at 1-V reverse bias is 22.5 GHz and 0.22 A/W at the wavelength of1550 nm, respectively. The dark current of the device is less than 4nA at 3.3 V reverse bias. The fabricated device can achieve high...
We designed and optimized a high-speed, low-loss electrodes applied to photodiode array (PDA) using simulating software HFSS. Optimized and un-optimized electrodes were fabricated and tested. A 1.1dB reduce of the insertion loss at 40GHz was achieved by the optimization. Meanwhile, photodiode array implementing the optimized electrodes has a 6.6GHz higher 3dB-bandwidth comparing to the photodiode...
In this paper, the reliability of transient simulation results of uni-traveling-carrier photodiodes (UTC-PDs) is demonstrated by compared with experimental and reported simulation results, when the parameters of drift-diffusion model are set correctly.
High-speed uni-traveling-carrier photodetector (UTC-PD) and three modified uni-traveling-carrier photo-detectors (MUTC-PDs) incorporating different doping profile are designed and simulated for a wavelength of 1550 nm in this letter. According to comparison of simulated results, UTC-PD-1, MUTC-PD-2 and MUTC-PD-3 with constant doping profile, step-constant doping profile and Gaussian doping profile...
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