| 著作名稱： | Ultracompact polarization rotator in an asymmetric single dielectric loaded rib waveguide |
| 年度： | 2016 |
| 類別： |
期刊論文
Applied optics
|
| 摘要： | A compact polarization rotator (PR) with an asymmetric single dielectric loaded rib waveguide is proposed. The core of the waveguide is designed to have a specific rectangular configuration. The waveguide requires only a single asymmetrical dielectric loading on the core to complete the polarization conversion. The optical field is confined to the vicinity of the core center, which matches the optical field of the input/output waveguides. The transition loss of the PR is as low as 0.03–0.21 dB/facet without the taper or offset schemes. Such results can facilitate the fabrication of a PR with an operating length of 10 um. In a comprehensively designed PR with a length of 7.92 um, a –1 dB bandwidth for polarization conversion efficiency (PCE) is greater than 100 nm at the communicating wavelength of 1550 nm. The loading width and thickness with 20 nm tolerance exhibit −0.87 and −0.49 dB changes in PCE, respectively. |
| 關鍵字： | integrated optics devices, polarization-selective devices, guided waves |
| 著作名稱： | 8.13 um in length and CMOS compatible polarization beam splitter based on an asymmetrical directional coupler |
| 年度： | 2016 |
| 類別： |
期刊論文
Applied optics
|
| 摘要： | A compact silicon polarization beam splitter (PBS) is proposed based on an asymmetrical directional coupler consisting of a wide waveguide and a dielectric loaded narrow waveguide. Given that TE and TM polarizations are the dominant mode in the wide and narrow waveguides, respectively, a perfect phase-matching condition in TM mode but a huge phase mismatching in TE mode can be achieved. Therefore, the TE mode is almost uncoupled regardless of device length but the TM mode can only completely couple to the cross port at an appropriate coupling length. An ultrashort (~8.13 um long) PBS is designed based on a silicon-on-insulator nanowire with a loading refractive index of 2.0 and a gap width of 200 nm. Numerical simulations show that the proposed PBS has a broad bandwidth (~100 nm) with large extinction ratio (> 10 dB) and low insertion loss ( 0.61 dB). The fabrication-error tolerance of the PBS is also discussed. |
| 關鍵字： | integrated optics devices, polarization-selective devices, guided waves, waveguides |
| 著作名稱： | Anti-glare LED lamps with adjustable illumination light field |
| 年度： | 2014 |
| 類別： |
期刊論文
optics express
|
| 摘要： | We introduce a type of LED light-gauge steel frame lamp with an adjustable illumination light field that does not require a diffusion plate. Base on the Monte Carlo ray tracing method, this lamp has a good glare rating (GR) of 17.5 at 3050 lm. Compared with the traditional LED lightgauge steel frame lamp (without diffusion plate), the new type has low GR. The adjustability of the illumination light field could improve the zebra effect caused by the inadequate illumination light field of the lamp. Meanwhile, we adopt the retinal image analysis to discuss the influence of GR on vision. High GR could reflect stray light on the retinal image, which will reduce vision clarity and hasten the feeling of eye fatigue. |
| 關鍵字： | Illumination design, Light-emitting diodes, Vision - acuity |
| 著作名稱： | Chih-Wei Hsu, Chieh-Ting Chen, and Chih-Chung Yang, “Retracing behavior and broadband generation based on quasi-phase-matched optical parametric processes,” J. Optical Society of America B, Vol. 19, 1150-1156, 2002. (SCI) |
| 年度： | 2002 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Chih-Wei Hsu and C. C. Yang, “Broadband Optical Parametric Generation with Non-collinear Operation on Periodically Poled LiNbO3,” Optics Letters, Vol. 26, pp 1412-1414, 2001.(SCI) |
| 年度： | 2001 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Yan-Ju Chiang, Likarn Wang, Wen-Fung Liu, Horng-Shyang Chen, Chih-Wei Hsu, and C. C. Yang, “Temperature-Insensitive Strain Measurement Using Two Fiber Bragg Gratings in a Power Detection Scheme,” Optics Communications, Vol. 197, No. 4-6, pp. 327-330, 2001.(SCI) |
| 年度： | 2001 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | J. Q. Yao, X. Ding, J. Y. Qiao, C. C. Yang, I-Jen Hsu, and Chih-Wei Hsu, “Pump-Tuning Optical Parametric Oscillation and Sum-Frequency Mixing with KTP Pumped by a Ti:sapphire Laser,” Optics Communications, Vol. 192, No. 3-6, pp. 407-416, 2001(SCI) |
| 年度： | 2001 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Cheng-Yen Chen, Kung-Jeng Ma, Yen-Shen Lin, Chung-Yen Chao, Steffen Gurtler, Chee-Wee Liu, Chih-Wei Hsu, and C. C. Yang, “Formation of Silicon Surface Gratings with High Pulse-Energy UV Laser,” J. Applied Physics, Vol. 88, No. 11, pp. 6162-6169, 2000.(SCI) |
| 年度： | 2000 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Y. J. Wong, Chih-Wei Hsu and C. C. Yang, “Characteristics of a dual-wavelength semiconductor laser near 1550 nm,” IEEE Photonics Technology Letters, Vol. 11, pp. 173-175, 1999.(SCI) |
| 年度： | 1999 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Chih-Wei Hsu and C. C. Yang, “Using a Grating Structure for Phase Compensation in Achieving Efficient Round-trip Optical Parametric Process in PPLN with an Incomplete QPM Period,” Optics Letters, Vol. 24, pp. 540-542, 1999.(SCI) |
| 年度： | 1999 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | S. D. Huang, Chih-Wei Hsu, D. W. Huang and C. C. Yang, “Retracing behaviors of phase-matching angle in non-collinear phase-matched optical parametric oscillators,” J. Optical Society of America B, vol. 15, pp. 1375-1380, 1998.(SCI) |
| 年度： | 1998 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Chih-Wei Hsu, S. D. Huang, D. W. Huang and C. C. Yang, “Retracing behaviors of a BBO optical parametric oscillator pumped by 532nm laser,” Electronics Letters, vol. 34, pp. 212-214, 1998.(SCI) |
| 年度： | 1998 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Chih-Wei Hsu and C. C. Yang, “Passive mode-locking of semiconductor lasers based on nonlinear directional coupling,” Optics Letters, vol. 21, pp. 878-880, 1996.(SCI) |
| 年度： | 1996 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | C. C. Yang, Yean-Woei Kiang, Jiun-Haw Lee, Jyh-Yang Wang, Horng-Shyang Chen, Chih-Wei Hsu, Ding-An Wang, and Chih-Chang Chen, “Nonlinear Optical Effects in Semiconductor Optical Amplifiers and Their Applications to All-optical Switching,” SPIE Proceedings, Volume 4580, 2001. (invited) |
| 年度： | 2001 |
| 類別： |
期刊論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | LED 側光式楔形導光條應用於車尾燈設計 |
| 年度： | 2013 |
| 類別： |
期刊論文
International Journal of Science and Engineering
|
| 摘要： | 本研究在於探討LED 結合側光式導光條於汽 車尾燈的應用，利用透鏡縮小LED 發光角度，使 光進入楔形導光條，並分析其導光特性做結構最 佳化，以符合應用於汽車車尾燈裝置。運用3D 繪 圖軟體Solidworks 設計導光條模型，再利用幾何 光學之光線追跡法做分析，依據分析結果修正模 型的導光結構，進而改善光利用率與照明均勻 性， 經過設計後不僅提升整體光利用率達 82.16%，且照明均勻性也大幅提高達93.45%。 |
| 關鍵字： | 側光式、導光條、車尾燈、光利用率、均 勻性 |
| 著作名稱： | 利用反射型LED燈具設計隧道照明 |
| 年度： | 2020 |
| 類別： |
會議論文
|
| 摘要： | 在本文中，我們使用簡單的幾何反射照明器在道路上使用，並利用LED的全寬半峰照明角度來設計幾何道路照明器。與傳統方法相比，我們將LED安裝在燈具的上面板上，直接調整幾何燈具六面體的各個參數。使用照明設計軟件DIALux進行了仿真，以使仿真結果滿足國際照明委員會（CIE）和IESNA對道路交通和所有規格的要求。 |
| 關鍵字： | DIAlux、二次光學、光線追跡法、隧道照明 |
| 著作名稱： | Research of the Narrow Bandpass Filters Compose of Ta2O5 and SiO2 |
| 年度： | 2019 |
| 類別： |
會議論文
|
| 摘要： | We propose a DWDM thin-film filter with 200GHz grid. The designed filter consists of three cavities. The dielectric mirrors are composed of a stack of SiO2 and Ta2O5 thin-film. The simulation results show that the designed filter can meet all ITU-T specs. |
| 關鍵字： | DWDM, thin-film filter, ITU-T |
| 著作名稱： | Polarization Beam Splitter Based on Two Symmetric Rib Waveguides Using TSRI IMEC-SiPh Process Technology |
| 年度： | 2019 |
| 類別： |
會議論文
|
| 摘要： | We propose a novel polarization beam splitter based on decoupling control which is consisted of two symmetric rib waveguides. The design is proposed to be implemented using TSRI IMEC-SiPh process technology. The proposed PBS has a broad bandwidth (~100 nm) for a good ER of >10 dB. |
| 關鍵字： | Polarization beam splitter, decoupling, waveguide. |
| 著作名稱： | Polarization Beam Splitter Based on two Symmetric Rib Waveguides with Different Slab Heights |
| 年度： | 2018 |
| 類別： |
會議論文
|
| 摘要： | We propose a novel polarization beam splitter based on decoupling control which is consisted of two symmetric rib waveguides. The device is designed to decouple TM polarization. Meanwhile, the TE mode is coupled to the cross port at an appropriate coupling length. |
| 關鍵字： | Polarization, decoupling, waveguide |
| 著作名稱： | Simple reflector luminaire for LED street lighting |
| 年度： | 2016 |
| 類別： |
會議論文
|
| 摘要： | By using simple reflector luminaire we design a illumination system for street light. Instead of having complexly curved reflective or refractive elements, the
luminaire has a simple quadrilateral frustum form with five flat planar mirrors. Verification with the Monte Carlo ray tracing method demonstrates that the luminaire displays high optical efficiency, low glare, and high uniformity. |
| 關鍵字： | |
| 著作名稱： | Highly sensitive miniaturized refractive index sensor based on polarization rotation in optical waveguide |
| 年度： | 2016 |
| 類別： |
會議論文
|
| 摘要： | A highly sensitive, miniaturized, integrated optic refractive index sensor is proposed based on polarization rotation in waveguides. The sensitivity of the sensor can be increased by increasing the length of the waveguide rotator. Post-fabrication trimming technique can be used to adjust the detection range and eliminate the fabrication error of the device. |
| 關鍵字： | Refractive index sensor, polarization rotation, waveguide, integrated optics devices |
| 著作名稱： | Synthesis High Sensivity ZnO Cholesterol Biosensor with One Dimensional Nanostructures |
| 年度： | 2016 |
| 類別： |
會議論文
|
| 摘要： | Chelosterol ZnO biosensors were synthesized by hydrothermal method with pre-deposited ALD-ZnO seed layers. The ZnO nanostructures were examined by SEM, XRD, AFM, respectively. The XRD is used to analyze the crystal structures of ZnO seed layers that were grown by ALD process, then using SEM and AFM to analysis the surface morphologies of them. Growing of one dimensional ZnO nanostructures on seed layer of 10nm thickness, reveals high sensitivity of 3.15 uA (mg/dl)-1cm-2(121.96 uAmM-1cm-2) and low Km value of0.29mM in 25-100mg/dl cholesterol concentration range. The response time could be as low as 10seconds. In the study, it is found that increasing the aspect ratio of ZnO one dimensional nanostructure also increases the sensitivity and expends the linear measureable range of detecting cholesterol in solution. The thickness of seed layer has a significant influence on sensitivity for one dimensional nano ZnO cholesterol biosensor. |
| 關鍵字： | |
| 著作名稱： | Polarization Beam Splitter based on an Asymmetric Directional Coupler with Different Core Aspect Ratio |
| 年度： | 2013 |
| 類別： |
會議論文
|
| 摘要： | A polarization beamsplitter (PBS) based on asymmetrical directional coupler (ADC) is proposed by utilizing the evanescent coupling between a wide waveguide and a dielectric loaded narrow waveguide. The TM mode is design to be well coupled in the ADC. Meanwhile, since the aspect ratios of these two waveguides are different, the large phase mismatched TE mode results in negligible coupling. The simulation results show that the present PBS has a high extinction ratio of more than 20 dB. |
| 關鍵字： | polarization beamsplitter, asymmetrical directional coupler, waveguide |
| 著作名稱： | 雙根非對稱定向耦合器S型彎曲優化設計 |
| 年度： | 2022 |
| 類別： |
會議論文
|
| 摘要： | 在此篇論文中以SOI技術為基礎，本論文使用有限元素法進行摸擬分析，並以元件在波長1510nm作為主要研究方向，藉由波導模態的耦合現象及導波條件設計出非對稱定向耦合器，能使TE模態能發生強耦合現象耦合過去另外一根波導，而使TM模態幾乎不會耦合。
而TE模態由於是非對稱型波導之折射率不同，相位不匹配的狀況下，我們要依依調整波導寬度滿足相位匹配條件，藉此達到極化分離的效果。首先，我們的波導是雙根S型彎曲，由於S型彎曲會比未彎曲時的折射率高，於是我們固定一邊的曲率半徑去匹配另外一根波導曲率半徑的值，讓整根波導不論是直線或彎曲時相位皆匹配。
從模擬結果顯示我們通過利用雙S型波導在適當的耦合距離下，分別為曲率半徑20000nm以及角度為13度、曲率半徑47000nm以及角度為5.493度，設計出耦合量99.28%、殘留量僅0.72%達到強耦合的效果。 |
| 關鍵字： | 非對稱定向耦合器、波導、強耦合、相位匹配、雙根S型彎曲 |
| 著作名稱： | 利用非對稱定向耦合器製作寬頻的極化分離器 |
| 年度： | 2019 |
| 類別： |
會議論文
|
| 摘要： | 透過利用寬波導與矩形波導之間的耦合，提出了一種非對稱定向耦合器(ADC)的極化分離器(PBS)。TE模態能夠很穩定從波導A(WGA)耦合至波導(WGB)；同時因兩個波導的寬高比不相同，在矮胖的WGB的TM模態是被截止的，所以不會有TM模態會耦合至WGB。根據模擬結果，此PBS具有在100nm頻寬估計能夠有大於20dB的消光比。 |
| 關鍵字： | 非對稱定向耦合器、矩形波導、極化分離器 |
| 著作名稱： | 肋狀波導定向耦合器之去耦合現象 |
| 年度： | 2018 |
| 類別： |
會議論文
|
| 摘要： | 本論文提出了一個肋狀波導，利用SOI的製程方式來模擬兩側波導寬高比相等的波導並覆蓋於肋條上，這種波導結構中，在一定的波導間距中我們發現了去耦合現象，當使其間距為適當之距離，讓肋狀波導中的TE模態能夠耦合，另一方面TM模態由於在這特殊的結構下產生了去耦合現象，使其TM偶模態與TM奇模態之模態折射率相等，最後將此去耦合現象應用在定向耦合器上，而不會出現波導間TM模態互相耦合，用去耦合現象模擬出的肋狀定向耦合器會因為TM模態不耦合而有良好的分光效果。 |
| 關鍵字： | 肋狀波導、去耦合、定向耦合器 |
| 著作名稱： | 反射型LED路燈設計 |
| 年度： | 2018 |
| 類別： |
會議論文
|
| 摘要： | 在本篇論文，我們提出了一個創新、簡單的反射型燈具模型在路燈上。大部份的研究者通常是利用穿透型設計方法在室外照明的部分，我們使用反射型設計方法在室外照明上。模型的結構為六面體結構，只需要利用平面來架構就可以了，這使得製造上與曲面的架構相比，更加簡單，價格也較便宜。而我們把LED燈放在模型的斜邊上，這樣一來能夠直接透過調整模型的參數讓配光曲線能改變成能夠應用在路燈上面的形式。根據蒙地卡羅光線追跡模擬方法及照明設計軟體DIALux模擬，其結果符合國際照明委員會(CIE)跟北美照明學會(Illuminating Engineering Society of North America，IESNA)針對道路交通的規定。 |
| 關鍵字： | 二次光學、發光二極體、路燈、DIALux |
| 著作名稱： | 利用介電質覆蓋的非對稱波導定向耦合元件製作極化分光器 |
| 年度： | 2013 |
| 類別： |
會議論文
|
| 摘要： | 在本文中，我們提出了利用非對稱定向耦合器製作
極化分光器。我們利用將介電質覆蓋在一側波導上，並
透過改變另一側波導的核心寬度，使得在非對稱波導上
的 TE 模態可以耦合。另一方面，TM 模態會因為相位
匹配條件不滿足而沒有顯著的耦合。根據模擬結果顯示
本文所提供的極化分光器具有大於 30dB 的消光比之特
性。 |
| 關鍵字： | 極化分光器、定向耦合器、波導 |
| 著作名稱： | 利用波導極化轉換元件製作折射率感測器 |
| 年度： | 2013 |
| 類別： |
會議論文
|
| 摘要： | 在此篇論文中，我們使用SOI製程參數設計出單側矩形缺口波導極化轉換元件，並將其運用在感測液體折射率。感測原理為利用待測液體折射率與波導極化轉換元件的極化轉換效率(PCE, polarization conversion efficiency)的響應曲線進行感測，並可透過增加極化轉換波導長度Lc來提高感測靈敏度，當元件長度為508 μm時感測靈敏度可達2.0710-5。此感測器具有製程簡單、靈敏度高等特性，相信未來可以運用在液體成份控制的關鍵製程上。 |
| 關鍵字： | 波導、極化轉換器、感測器 |
| 著作名稱： | 利用濺鍍 TiO2 薄膜製作區段波導感測元件 |
| 年度： | 2012 |
| 類別： |
會議論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | 新型大尺寸單模波導之研究 |
| 年度： | 2011 |
| 類別： |
會議論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | The improvement of segment waveguide sensor |
| 年度： | 2010 |
| 類別： |
會議論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Refractometer Based On Bent Waveguide |
| 年度： | 2010 |
| 類別： |
會議論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Simulation and analysis of bend
waveguide sensor |
| 年度： | 2010 |
| 類別： |
會議論文
|
| 摘要： | |
| 關鍵字： | |
| 著作名稱： | Improve Bending Efficiency with Air Trench Waveguide |
| 年度： | 2010 |
| 類別： |
會議論文
|
| 摘要： | |
| 關鍵字： | |