High-speed Ge photodetector monolithically integrated with large cross-section silicon-on-insulator waveguide

S-bend contributes the high losses in the silicon-on-insulator (SOI) large cross-section rib waveguide (LCRW). The objective of this work is to investigate S-bend SOI LCRW with two different single-mode dimensions named symmetrical and asymmetrical. The S-bend SOI LCRW has been simulating using beam propagation method in OptiBPM software. The asymmetrical waveguide with two different dimension arc given the best performance if compared to others dimension with 3 µm of waveguide spacing. It achieved 92.24% and 91.10% of normalized output power (NOP) for 1550 nm and 1480 nm wavelength respectively. Moreover, the minimum of S-bend spacing between the two cores is 0.9 µm for both 1550 nm and 1480 nm. Therefore, asymmetrical waveguide with two different dimension arc and 0.9 µm of S-bend spacing are chosen. This analysis is important to determine the right parameter in order to design the SOI passive devices. However, future work should be done to see the performance by designing the coupler and implement in the real system.

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Dynamic Field Tests on the Base of a Large Cross-Section High-Speed Railway Tunnel

Lecture Notes in Civil Engineering - Advances in Environmental Vibration and Transportation Geodynamics ◽

10.1007/978-981-15-2349-6_26 ◽

2020 ◽

pp. 411-428

Author(s):

Fuchun Xue ◽

Jianlin Ma ◽

Liping Yan

Keyword(s):

Cross Section ◽

High Speed ◽

Field Tests ◽

Large Cross Section ◽

Railway Tunnel ◽

High Speed Railway ◽

Dynamic Field

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Wavelength-selective ratio splitter by using large cross-section rib silicon-on-insulator parallel waveguide

2016 IEEE 6th International Conference on Photonics (ICP) ◽

10.1109/icp.2016.7510007 ◽

2016 ◽

Author(s):

Nurdiani Zamhari ◽

Mohammad Syuhaimi Ab-Rahman ◽

Abang Annuar Ehsan

Keyword(s):

Cross Section ◽

Silicon On Insulator ◽

Large Cross Section

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CPM REX M4 HC (HS)

Alloy Digest ◽

10.31399/asm.ad.ts0639 ◽

2006 ◽

Vol 55 (12) ◽

Keyword(s):

Fracture Toughness ◽

Physical Properties ◽

Surface Treatment ◽

Cross Section ◽

Tool Steel ◽

High Speed ◽

Heat Treating ◽

Large Cross Section ◽

Carbon Modification ◽

Sulfur Modification

Abstract Crucible CPM Rex M4 HC (HS) is a high-vanadium high-speed tool steel made by the Crucible particle metallurgy (CPM) process. This higher-carbon modification of M4 (See Alloy Digest TS-264, November 1973) has high hardening. It also comes with a high-sulfur modification for large cross-section pieces to ease machinability. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-639. Producer or source: Crucible Service Centers Divisional Headquarters.

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