Yazar "0000-0001-6452-0804" için listeleme
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Amplitude noise suppression by intracavity phase modulation in a harmonically mode-locked laser
Ozharar, Sarper; Ozdur, Ibrahim (ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, 2018)A fiber coupled semiconductor ring laser that employs both an amplitude and a phase modulator was built and actively harmonic mode-locked at a repetition rate of 10 GHz. The phase modulator was driven at the cavity fundamental ... -
The Effects of Intracavity Phase Modulation and Extracavity Optical Filtering on Amplitude Noise of Mode-Locked Pulse Trains
Ozharar, Sarper; Ozdur, Ibrahim (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2018)An actively mode-locked, fiber-coupled semiconductor ring laser that employs both a phase modulator and an amplitude modulator was built. The laser was mode locked by loss modulation at 10 GHz and the intracavity phase ... -
Experimental analysis of absolute phase noise of a harmonically mode-locked semiconductor laser
Ozharar, S.; Ozdur, I. (NATL INST OPTOELECTRONICS, 1 ATOMISTILOR ST, PO BOX MG-5, BUCHAREST-MAGURELE 76900, ROMANIA, 2018)In this work, we have designed and experimentally characterized the absolute phase noise of a fiber coupled semiconductor ring laser at 1550 nm, actively mode-locked at 10 GHz by an external RF oscillator. The dependency ... -
Fotonik Fener Tabanlı Eş‐Fazlı Alıcı Performans Analizi
Özdür, İbrahim Tuna (TUBİTAK, 2016)Bos uzay es fazlı algılama sistemlerinin performanslarını arttırmak için fotonik fenerli sistemler önerilmistir (US 9322992 ). Bu projede fotonik fenerli es fazlı alıcıların sistem performansına nasıl katkı yaptıkları ... -
Multifunction optoelectronic gate
Ozdur, Ibrahim Tuna; Ozharar, Sarper; Delfyett, Peter J. (WILEY, 2015)A multifunction optoelectronic gate that can perform as any desired logic gate of two variables was theoretically proposed and a simplified version is experimentally demonstrated. The proposed optoelectronic gate is ... -
Optical detection of microplastics in water
Iri, Ahmet H.; Shahrah, Malek H. A.; Ali, Ali M.; Qadri, Sayed A.; Erdem, Talha; Ozdur, Ibrahim T.; Icoz, Kutay (SPRINGER HEIDELBERGTIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY, 2021)Unfortunately, the plastic pollution increases at an exponential rate and drastically endangers the marine ecosystem. According to World Health Organization (WHO), microplastics in drinking water have become a concern and ... -
Performance analysis of photonic lantern based coherent receivers
Oran, A.; Ozdur, I. (NATL INST OPTOELECTRONICS, 1 ATOMISTILOR ST, PO BOX MG-5, BUCHAREST-MAGURELE 76900, ROMANIA, 2018)In this paper, we present the simulation results for bit-error-rate improvements of photonic lantern based coherent LIDAR systems. Our results show that using a 19-port photonic lantern, the bit-error-rate can be improved ... -
Performance improvements of photonic lantern based coherent receivers
Ozdur, Ibrahim Tuna; Toliver, Paul; Woodward, T. K. (IEEE, 2014)In this work, the signal-to-noise ratio improvement of photonic lantern-based coherent receivers over single-mode coherent receivers is demonstrated. The signal-to-noise ratio is improved by a factor of 2.8 when other ... -
RF phase noise filtering properties of an actively mode-locked laser
Mbonde, Hamidu; Ozharar, Sarper; Ozdur, Ibrahim (WILEY, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA, 2018)In this article, we are presenting the experimental results and theoretical analysis of radio frequency (RF) phase noise filtering properties of a high Q cavity actively driven mode-locked laser. The experimental results ... -
Use of laser-induced bubbles in intraocular pressure measurement: a preliminary study
Altindis, Fatih; Ozdur, Ibrahim T.; Mutlu, Sait N.; Yilmaz, Bulent (IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND, 01.01.2019)This work investigates the feasibility of a novel approach for measuring intraocular pressure (IOP) by analyzing micron-level laser-induced bubble characteristics in the intraocular fluid. We believe that this concept may ...