From 225589749225bdf1f9e73a9811d66d7128f0ecc0 Mon Sep 17 00:00:00 2001 From: Thomas Dehaeze Date: Sat, 10 Oct 2026 21:35:38 +0200 Subject: [PATCH] Update content - 2026-10-10 --- content/zettels/quadrant_photodiodes.md | 23 ++++++++++---------- content/zettels/transimpedance_amplifiers.md | 3 ++- 2 files changed, 14 insertions(+), 12 deletions(-) diff --git a/content/zettels/quadrant_photodiodes.md b/content/zettels/quadrant_photodiodes.md index 330fccc..a969651 100644 --- a/content/zettels/quadrant_photodiodes.md +++ b/content/zettels/quadrant_photodiodes.md @@ -42,7 +42,7 @@ Basic requirements (taken from [here](https://www.aptechnologies.co.uk/home/supp Estimation of the linear region. -The relation between the spot size and the quadrant photodiode sensitivity is well explained in (Lee et al. 2010). +The relation between the spot size and the quadrant photodiode sensitivity is well explained in (Lee et al. 2010). Usually, single mode laser are used such that the beam profile can well be approximated by a Gaussian distribution. The irradiance distribution is then: @@ -69,18 +69,18 @@ Spot size of collimated bean at focal plane of a lens ([link](https://www.gentec See: -- (Ng, Tan, and Foo 2007) -- (Manojlović 2011) -- (Wu et al. 2015) +- (Ng, Tan, and Foo 2007) +- (Manojlović 2011) +- (Wu et al. 2015) - (Azaryan et al. 2019) -- (Li et al. 2019) +- (Li et al. 2019) ## Electrical Readout {#electrical-readout} [Transimpedance Amplifiers]({{< relref "transimpedance_amplifiers.md" >}}) amplifiers are required (schematic shown in [Figure 4](#figure--fig:quadrant-transresistance-amplifier)). -- Trade-off between gain / noise / bandwidth (see [The art of electronics - third edition]({{< relref "horowitz15_art_of_elect_third_edition.md" >}}), chapter 8.11.4). +- Trade-off between gain / noise / bandwidth (see (Horowitz 2015), chapter 8.11.4). The amplifier in [Figure 4](#figure--fig:quadrant-transresistance-amplifier) produces a voltage: @@ -161,9 +161,10 @@ We now that the maximum translation of the beam is \\(\Delta z = 1\\,mm\\) and t
Azaryan, N. S., J. A. Budagov, M. V. Lyablin, A. A. Pluzhnikov, B. Di Girolamo, J.-Ch. Gayde, and D. Mergelkuhl. 2019. “Position-Sensitive Photoreceivers: Sensitivity and Detectable Range of Displacements of a Focused Single-Mode Laser Beam.” Physics of Particles and Nuclei Letters 16 (4): 354–76. doi:10.1134/s1547477119040058.
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Lee, Eun Joong, Youngok Park, Chul Sung Kim, and Taejoon Kouh. 2010. “Detection Sensitivity of the Optical Beam Deflection Method Characterized with the Optical Spot Size on the Detector.” Current Applied Physics 10 (3): 834–37. doi:10.1016/j.cap.2009.10.003.
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Li, Qing, Shaoxiong Xu, Jiawei Yu, Lingjie Yan, and Yongmei Huang. 2019. “An Improved Method for the Position Detection of a Quadrant Detector for Free Space Optical Communication.” Sensors 19 (1): 175. doi:10.3390/s19010175.
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Manojlović, Lazo M. 2011. “Quadrant Photodetector Sensitivity.” Applied Optics 50 (20). Optical Society of America: 3461–69.
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Ng, T.W., H.Y. Tan, and S.L. Foo. 2007. “Small Gaussian Laser Beam Diameter Measurement Using a Quadrant Photodiode.” Optics &Amp; Laser Technology 39 (5): 1098–1100. doi:10.1016/j.optlastec.2006.06.001.
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Wu, Jiabin, Yunshan Chen, Shijie Gao, Yimang Li, and Zhiyong Wu. 2015. “Improved Measurement Accuracy of Spot Position on an Ingaas Quadrant Detector.” Applied Optics 54 (27). Optical Society of America: 8049–54.
+
Horowitz, Paul. 2015. The Art of Electronics - Third Edition. New York, NY, USA: Cambridge University Press.
+
Lee, Eun Joong, Youngok Park, Chul Sung Kim, and Taejoon Kouh. 2010. “Detection Sensitivity of the Optical Beam Deflection Method Characterized with the Optical Spot Size on the Detector.” Current Applied Physics 10 (3): 834–37. doi:10.1016/j.cap.2009.10.003.
+
Li, Qing, Shaoxiong Xu, Jiawei Yu, Lingjie Yan, and Yongmei Huang. 2019. “An Improved Method for the Position Detection of a Quadrant Detector for Free Space Optical Communication.” Sensors 19 (1): 175. doi:10.3390/s19010175.
+
Manojlović, Lazo M. 2011. “Quadrant Photodetector Sensitivity.” Applied Optics 50 (20). Optical Society of America: 3461–69.
+
Ng, T.W., H.Y. Tan, and S.L. Foo. 2007. “Small Gaussian Laser Beam Diameter Measurement Using a Quadrant Photodiode.” Optics &Amp; Laser Technology 39 (5): 1098–1100. doi:10.1016/j.optlastec.2006.06.001.
+
Wu, Jiabin, Yunshan Chen, Shijie Gao, Yimang Li, and Zhiyong Wu. 2015. “Improved Measurement Accuracy of Spot Position on an Ingaas Quadrant Detector.” Applied Optics 54 (27). Optical Society of America: 8049–54.
diff --git a/content/zettels/transimpedance_amplifiers.md b/content/zettels/transimpedance_amplifiers.md index 8c6b9db..03bf626 100644 --- a/content/zettels/transimpedance_amplifiers.md +++ b/content/zettels/transimpedance_amplifiers.md @@ -41,7 +41,7 @@ This is usually larger than the amplifier input current noise. {{< figure src="/ox-hugo/transimpedance_amplifier_schematic.png" caption="Figure 1: Transimpedance Amplifier; Current in, Voltage out" >}} -More information about transimpedance can be found in [The art of electronics - third edition]({{< relref "horowitz15_art_of_elect_third_edition.md" >}}), chapter 8.11.4, especially on the trade-off between gain, noise and bandwidth. +More information about transimpedance can be found in (Horowitz 2015), chapter 8.11.4, especially on the trade-off between gain, noise and bandwidth. See [this](https://www.hardware-x.com/article/S2468-0672(21)00062-6/fulltext) open hardware design. @@ -63,4 +63,5 @@ See [this](https://www.hardware-x.com/article/S2468-0672(21)00062-6/fulltext) op ## Bibliography {#bibliography}
+
Horowitz, Paul. 2015. The Art of Electronics - Third Edition. New York, NY, USA: Cambridge University Press.