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Journal articles on the topic 'Passive optical athermalization'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Zhao, Lei, Zhao Hui Luan, Yan Ling Xiong, and Li Juan He. "Athermalization Design of Wide Field Medium Wave Infrared Optical System." Advanced Materials Research 981 (July 2014): 295–98. http://dx.doi.org/10.4028/www.scientific.net/amr.981.295.

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Based on the principle of passive optical athermalization, a wide field medium wave infrared optical system is designed for working at -40℃-60℃. A 320×240 focal plane array (FPA) detector as image plane is used in the system. The system has a field-of-view of 30°×22.72° and a relative aperture of f/2 at 3-5 µm with 100% cold shield efficiency. The modulation transfer function (MTF) of each field is greater than 0.6 at the Nyquist frequency and the maximum distortion is less than 3% at -40℃-60℃. The system can meet the demand of the excellent image quality. This work is valuable for athermaliza

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2

Tyagur, V. M., O. K. Kucherenko, and A. V. Murav’ev. "Passive optical athermalization of an IR three-lens achromat." Journal of Optical Technology 81, no. 4 (2014): 199. http://dx.doi.org/10.1364/jot.81.000199.

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3

Kang, LI, ZHOU Feng, WANG Baohua, and GONG Hui. "Passive athermalization design of a cooled infrared optical system." Chinese Optics 16 (2023): 1–8. http://dx.doi.org/10.37188/co.2022-0205.

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4

Pulov, Dimcho, and Petar Tsvyatkov. "PASSIVE ATHERMALIZATION OF LENSES FOR LWIR SPECTRAL RANGE." ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference 4 (June 8, 2025): 329–35. https://doi.org/10.17770/etr2025vol4.8448.

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This paper investigates the possibility of passive athermalization of objectives for the long-wave infrared (LWIR) region of the spectrum. The main scientific problem is the difficulty in designing an athermalized objectives without the use of aspherical and diffractive surfaces and with the availability of a limited number of optical materials. A design methodology is applied, the focus of which is the use of materials with a negative thermal coefficient of refractive index and with specific values of the refractive index and Abbe number. The results obtained show that the designed objectiv

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5

Zhang, Yu, Ji Yang Shang, Yue Xu, and Wen Sheng Wang. "Design of Athermalized Infrared Telephoto Lens." Key Engineering Materials 552 (May 2013): 8–13. http://dx.doi.org/10.4028/www.scientific.net/kem.552.8.

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IR optical system is much more appropriate to be applied in cluttered and formidable conditions. The change of temperature could degrade image quality of the infrared optical system. So the athermalization becomes the difficult part and key factor in the designing of MWIR optical systems for working under temperature range of -40°C~60°C. In this paper, the infrared telephoto lens is designed; it meets the designing requirements and has good image quality. The effective focal length is 240mm and the F-number is 2.The full field of view is 3.2°. In order to balance the chromatic aberration, an a

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6

Yan Aqi, 闫阿奇, 崔雯 Cui Wen та 董森 Dong Sen. "大变倍比光学被动半无热化变焦系统设计". Acta Optica Sinica 42, № 4 (2022): 0422001. http://dx.doi.org/10.3788/aos202242.0422001.

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7

Doğan, Aslı, and Akın Bacıoğlu. "Design of a passive optical athermalization of dual-band IR seeker for precision-guided systems." Journal of Modern Optics 68, no. 11 (2021): 593–603. http://dx.doi.org/10.1080/09500340.2021.1937734.

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8

Greisukh, G. I., I. A. Levin, and O. A. Zakharov. "Diffractive elements in thermal imaging monofocal dual-band objectives: design and technological aspects." Computer Optics 48, no. 2 (2024): 210–16. http://dx.doi.org/10.18287/2412-6179-co-1336.

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Using the example of the development of two simple dual-band monofocal IR objectives, approaches to the layout and design of their optical schemes are demonstrated, depending on whether compensation for the effects of temperature changes on the optical characteristics of these lenses is required or not. It is shown that in the case when thermal compensation is not required, superior optical characteristics can be achieved in a simple triplet, in which the flat surface of the frontal fractional lens carries a diffractive microstructure. In the case of passive athermalization, the optical scheme

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9

Wang, Sheng Ching, and Hsi Hsun Tsai. "The Stabilization of Central Wavelength of Fiber Bragg Gratings by Thermal Contraction Effect of Kovar Substrate." Advanced Materials Research 160-162 (November 2010): 1270–75. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.1270.

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A stabilized laser is essential for optical fiber communication network. One of the passive technique for stabilization of central wavelength of laser is based on the application of fiber Bragg gratings. Due to the positive coefficient of thermal expansion of optical fiber, the Bragg gratings within the fiber written by excimer laser gives about 0.01nm/oC shift on the central wavelength respect to the ambient temperature which leads serious problem in the communication network. Since both the temperature and tension force are linearly proportional to the central wavelength of fiber Bragg grati

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10

Zhang, Hongwei, Weining Chen, Yalin Ding, Rui Qu, and Sansan Chang. "Optical System Design of Oblique Airborne-Mapping Camera with Focusing Function." Photonics 9, no. 8 (2022): 537. http://dx.doi.org/10.3390/photonics9080537.

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The use of airborne-mapping technology plays a key role in the acquisition of large-scale basic geographic data information, especially in various important civil/military-mapping missions. However, most airborne-mapping cameras are limited by parameters, such as the flight altitude, working-environment temperature, and so on. To solve this problem, in this paper, we designed a panchromatic wide-spectrum optical system with a focusing function. Based on the catadioptric optical structure, the optical system approached a telecentric optical structure. Sharp images at different object distances

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11

Wang, Sheng Ching, and Hsi Hsun Tsai. "Thermal Wavelength Stabilization of Fiber Bragg Gratings Using Bi-Metal Structure." Applied Mechanics and Materials 44-47 (December 2010): 2963–67. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.2963.

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A stabilized laser is essential for optical fiber communication network. One of the passive technique for stabilization of central wavelength of laser is based on the application of fiber Bragg gratings. Due to the positive coefficient of thermal expansion of optical fiber, the Bragg gratings within the fiber written by excimer laser gives about 0.01nm/oC shift on the central wavelength respect to the ambient temperature which leads serious problem in the communication network. Since both the temperature and tension force are linearly proportional to the central wavelength of fiber Bragg grati

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12

Ruiz-Perez, Victor I., Daniel A. May-Arrioja, and Jose R. Guzman-Sepulveda. "Passive athermalization of multimode interference devices for wavelength-locking applications." Optics Express 25, no. 5 (2017): 4800. http://dx.doi.org/10.1364/oe.25.004800.

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13

Ivanov, Stepan E., and Galina E. Romanova. "Passive athermalization and achromatization of a two-component system with air gap." Applied Optics 60, no. 8 (2021): 2324. http://dx.doi.org/10.1364/ao.417173.

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14

Greisukh, G. I., I. A. Levin, and S. V. Kazin. "Passive mechanical athermalization of thermal imaging zoom lenses coupled to an uncooled infrared matrix detector." Journal of Optical Technology 90, no. 9 (2023): 498. http://dx.doi.org/10.1364/jot.90.000498.

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15

Yan, Aqi, Weining Chen, Qianxi Li, min guo, and HAO WANG. "Design of optical passive semi-athermalization zoom lens." Applied Optics, April 10, 2024. http://dx.doi.org/10.1364/ao.517025.

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16

Greisukh, G. I., E. G. Ezhov, and I. A. Levin. "Designing dual-band athermal refractive-lens IR objectives." Computer Optics 46, no. 6 (2022). http://dx.doi.org/10.18287/2412-6179-co-1167.

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The possibility of achieving superior optical characteristics and passive athermalization in dual-band IR objectives of a simple design is shown. This is ensured, in particular, by using refractive lenses made of chalcogenide glasses in the optical scheme. Recommendations regarding the layout of the optical scheme and obtaining initial design parameters for the subsequent optimization are given. The reliability and effectiveness of the recommendations are confirmed by the results of designing a super-aperture refractive-lens objective operating in the mid- and long-IR subranges and forming a h

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17

He, Jianghao, Dajian Liu, Ming Zhang, et al. "Ultra‐Low‐Loss and Athermalized Lithium‐Niobate‐on‐Insulator Photonic Chip for Next‐Generation PONs." Laser & Photonics Reviews, December 27, 2024. https://doi.org/10.1002/lpor.202401330.

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AbstractA high‐capacity lithium‐niobate‐on‐insulator (LNOI) optical transmitter for next‐generation passive optical‐networks (PONs) is proposed and demonstrated with ultra‐low temperature‐dependence for the first time by simultaneously introducing Z‐ and Y‐propagation LNOI photonic waveguides. There are five wavelength‐division‐multiplexed channels involved with the center wavelengths of 1270/1300/1342/1537/1577 nm, and the photonic filters are realized by integrating amplitude‐apodized multimode waveguide gratings (MWGs) and mode (de)multiplexers designed with Z‐propagation LNOI photonic wave

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