公开(公告)号：US20220128760A1

公开(公告)日：2022-04-28

申请号：US17423062

申请日：2020-01-17

Applicant: COMMSCOPE TECHNOLOGIES LLC

Inventor： Ana RADOSAVLJEVIC ,  Andres DESMET ,  Jeroen MISSINNE ,  Geert Firmin VAN STEENBERGE ,  Dries VAN THOURHOUT ,  Salvatore TUCCIO ,  Vivek PANAPAKKAM VENKATESAN ,  Saurav KUMAR ,  Cristina LERMA ARCE ,  Jan WATTÉ

IPC: G02B6/12 ,  G02B6/35 ,  G02B6/136

Abstract: The invention relates to the fabrication of optical switches in transparent substrates. The method includes exposing part of the substrate to a stream of femtosecond laser pulses to form an exposed volume which can later be etched to form a channel used for microfluidic control of the switch. This process is referred to as femtosecond laser induced chemical etching (FLICE). The waveguides of the optical switch are also written in the substrate by using femtosecond laser inscription (FLI), which can be performed in the same operation as the exposure step in the FLICE formation of the channel, thus ensuring alignment between the waveguides and the channel.

公开(公告)号：US20210124163A1

公开(公告)日：2021-04-29

申请号：US16638705

申请日：2018-08-16

Applicant: COMMSCOPE TECHNOLOGIES LLC

Inventor： Salvatore TUCCIO ,  Jan WATTÉ ,  Cristina LERMA ARCE

IPC: G02B26/00 ,  G02F1/313 ,  H04Q11/00

Abstract: An optical circuit that has a first input waveguide, at least a first output waveguide and an optical path between the first input waveguide and the at least a first output waveguide. A first totally internally reflecting (TIR) waveguide switch lies on the optical path between the first input waveguide and the at least a first output waveguide. A wavelength selective filter is disposed on the optical path between the first input waveguide and the at least one output waveguide, the wavelength selective filter being transmissive for light in a first wavelength range and reflective for light in a second wavelength range.

公开(公告)号：US20190331868A1

公开(公告)日：2019-10-31

申请号：US16478742

申请日：2018-01-17

Applicant: COMMSCOPE TECHNOLOGIES LLC

Inventor： Jan WATTÉ ,  Cristina LERMA ARCE ,  Salvatore TUCCIO ,  Stefano BERI

IPC: G02B6/44 ,  G02B6/42

Abstract: An optical fiber ribbon cable is formed using thermally expandable core (TEC) fibers. Expanded optical cores are formed in sections of TEC fibers, so that each section of TEC fiber comprises a first region having an unexpanded core, a second region having an expanded core, and a tapered region between the first region and the second region. The respective sections are cleaved to length and formed into a ribbon. A hybrid optical fiber ribbon cable can be made by fusing single mode optical fibers of a single mode fiber ribbon cable with TEC fibers of a TEC fiber ribbon cable using a laser. The laser is also used to form tapered core regions in the TEC fibers to reduce coupling losses between the TEC fibers and the single mode fibers.

公开(公告)号：US20240061180A1

公开(公告)日：2024-02-22

申请号：US18256015

申请日：2021-12-03

Applicant: CommScope Technologies LLC

Inventor： Saurav KUMAR ,  Jan WATTÉ ,  Cristina LERMA ARCE ,  Vivek PANAPAKKAM VENKATESAN ,  Jill Anne MALECHA

IPC: G02B6/293

CPC classification number: G02B6/29361 ,  G02B6/2938

Abstract: Integrated WDM mux/demux devices are disclosed. Some embodiments are directed to an in-line WDM mux/demux device formed with a substrate and a common port at a first side of the substrate and a plurality of separated wavelength ports at a second side of the substrate. The first side of the substrate is free of separated wavelength ports. Other embodiments are directed to a WDM mux/demux device in which a linear variable filter is disposed in the substrate for separating the signals in different channels. In other embodiments, the filter or filters are sandwiched between the edges of adjacent substrates, such that light propagating along a waveguide in one of the substrates is transmitted through the filter to a waveguide in the second substrate. The adjacent substrates may be mounted to a base substrate.

公开(公告)号：US20210349264A1

公开(公告)日：2021-11-11

申请号：US17282645

申请日：2019-10-04

Applicant: COMMSCOPE TECHNOLOGIES LLC

Inventor： Jan WATTÉ ,  Cristina LERMA ARCE ,  Salvatore TUCCIO ,  Saurav KUMAR ,  Vivek PANAPAKKAM VENKATESAN

IPC: G02B6/26 ,  H04Q11/00

Abstract: Optical devices a formed by mounting one optical chip directly to another. In some embodiments, one of the optical chips is formed in a low index contrast platform while the other is formed in a high index contrast platform. In other embodiments, one optical chip includes a number of optical functional elements having different operational characteristics, such as a number of optical taps having different tap ratios. A second chip is mounted to receive an optical signal from an optical functional element having a selected operational characteristic.