Acta Photonica Sinica, Volume. 52, Issue 5, 0552216(2023)
Analysis of Collimation Errors in Off-axis Parabolic Reflective Fiber Collimators
Fig. 1. The ideal(dotted line)and realistic(solid line)transmission peak of an FP Etalon
Fig. 2. Spectral images taken by the 2.16-HRS spectrograph of the same FP etalon under different illumination
Fig. 3. Illustration of the off-axis parabolic reflective collimator
Fig. 6. Angular energy distribution of the output beam without any fiber positioning error(OAP collimators with 16.5 mm PFL)
Fig. 7. Angular energy distribution of the output beam without any fiber positioning error(OAP collimators with the same off-axis angle and different PFL,or different off-axis angle and the same RFL)
Fig. 8. Influence of ±10 mrad rotation fiber positioning error around the yf-axis(pitch)on the angular energy distribution of the output beam(OAP collimator with 90o off-axis angle,16.5 mm PFL)
Fig. 9. Influence of ±10 mrad rotation fiber positioning error around the xf-axis(roll)on the angular energy distribution of the output beam(OAP collimator with 90o off-axis angle,16.5 mm PFL)
Fig. 10. Influence of ±10 μm shift fiber positioning error along the xf-axis(Δx)on the angular energy distribution of the output beam(OAP collimator with 90o off-axis angle,16.5 mm PFL)
Fig. 11. Influence of ±10 μm shift fiber positioning error along the yf-axis(Δy)on the angular energy distribution of the output beam(OAP collimator with 90o off-axis angle,16.5 mm PFL)
Fig. 12. Influence of ±10 μm shift fiber positioning error along the zf-axis(Δz)on the angular energy distribution of the output beam(OAP collimator with 90o off-axis angle,16.5 mm PFL)
Fig. 13. Influence of rotation + Δx shift fiber positioning errors on the angular distribution of the output beam(OAP collimator with 90o off-axis angle,16.5 mm PFL)
Fig. 14. Influence of rotation + Δy shift fiber positioning errors on the angular distribution of the output beam(OAP collimator with 90o off-axis angle,16.5 mm PFL)
Fig. 15. Influence of rotation + Δz shift fiber positioning errors on the angular distribution of the output beam(OAP collimator with 90o off-axis angle,16.5 mm PFL)
|
|
|
|
Get Citation
Copy Citation Text
Liang TANG, Huiqi YE, Zhibo HAO, Dong XIAO. Analysis of Collimation Errors in Off-axis Parabolic Reflective Fiber Collimators[J]. Acta Photonica Sinica, 2023, 52(5): 0552216
Category: Special Issue for Advanced Science and Technology of Astronomical Optics
Received: Dec. 27, 2022
Accepted: Feb. 2, 2023
Published Online: Jul. 19, 2023
The Author Email: TANG Liang (ltang@niaot.ac.cn)