# US 2019/0377147 A1 · Rf emi reducing fiber cable assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0377147 A1 - Document ID: US20190377147A1 - Status: Published application - Kind: A1 - Application number: 16/423,206 - Filed: 2019-05-28 - Published: 2019-12-12 - Earliest claimed: 2018-06-06 - Assignees: Mellanox Technologies, Ltd. - Applicants: Mellanox Technologies, Ltd. - Inventors: Pavel Vilner; Avner Badihi; Liza Nouzman; Lena Minz - Web page: https://patentgrep.com/patent/US20190377147A1 ## CPC - G02B 6/4277: {Protection against electromagnetic interference [EMI], e.g. shielding means (shielding of electric apparatus H05K9/00, of instruments G12B17/00)} - G02B 6/3817: {containing optical and electrical conductors (cables including electrical and optical conductors H01B11/22; G02B6/3816 takes precedence)} - G02B 6/3878: {comprising a plurality of ferrules, branching and break-out means} - G02B 6/3893: {Push-pull type, e.g. snap-in, push-on} - H04B 10/2575: Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier - H05K 9/0083: {comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers (H05K9/0086 takes precedence)} - G02B 6/3879: {Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs} - G02B 6/38875: {Protection from bending or twisting} - G02B 6/4246: {Bidirectionally operating package structures} - G02B 6/4292: {the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H04B: TRANSMISSION - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract One embodiment includes an optical connection apparatus, including an optical cable, and a fiber-attach-latch connector terminating the optical cable, and comprising a connector housing including a latch element, the connector housing being configured to be reversibly inserted into a connector receptable of an optical module having an optical transceiver, and a connector boot connected to the connector housing and disposed around a part of the optical cable, wherein at least part of the connector housing is formed from radio-frequency (RF) electromagnetic (EM) radiation absorbing material configured to absorb RF EM interference generated by the optical module. ## Claims ### Claim 1 An optical connection apparatus, comprising: an optical cable; and a fiber-attach-latch connector terminating the optical cable, and comprising: a connector housing including a latch element, the connector housing being configured to be reversibly inserted into a connector receptable of an optical module having an optical transceiver; and a connector boot connected to the connector housing and disposed around a part of the optical cable, wherein at least part of the connector housing is formed from radio-frequency (RF) electromagnetic (EM) radiation absorbing material configured to absorb RF EM interference generated by the optical module. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein the RF EM radiation absorbing material has at least one of: a relative permittivity loss coefficient greater than 0.25; and a relative permeability loss coefficient greater than 0.25 at a frequency of the RF EM interference generated by the optical module. ### Claim 3 (depends on 1) The apparatus according to claim 1, wherein at least 5 mm3 of the connector housing is formed from the RF EM radiation absorbing material. ### Claim 4 (depends on 1) The apparatus according to claim 1, wherein at least 1 mm3 of the connector housing is formed from the RF EM radiation absorbing material. ### Claim 5 (depends on 4) The apparatus according to claim 4, wherein the RF EM radiation absorbing material forming at least 1 mm3 of the connector housing comprises a plastic or elastomeric material mixed with an RF EM absorber. ### Claim 6 (depends on 5) The apparatus according to claim 5, wherein the RF EM absorber is selected from carbonyl iron or carbon powder. ### Claim 7 (depends on 1) The apparatus according to claim 1, wherein the fiber-attach-latch connector includes an RF EM radiation absorbing sleeve disposed at least partially over the connector boot, and including RF EM radiation absorbing material. ### Claim 8 (depends on 7) The apparatus according to claim 7, wherein the RF EM radiation absorbing material of the RF EM radiation absorbing sleeve comprises a plastic or an elastomeric material mixed with an RF EM absorber. ### Claim 9 (depends on 8) The apparatus according to claim 8, wherein the RF EM absorber is selected from carbonyl iron or carbon powder. ### Claim 10 (depends on 7) The apparatus according to claim 7, wherein the RF EM radiation absorbing sleeve is disposed at least partially over the connector boot and at least partially over the connector housing. ### Claim 11 (depends on 10) The apparatus according to claim 10, wherein the RF EM radiation absorbing sleeve includes a flexible region, which covers the latch element, so as to enable actuation of the latch element via depressing the flexible region of the RF EM radiation absorbing sleeve. ### Claim 12 An optical connection apparatus, comprising: an optical cable; and a fiber-attach-latch connector terminating the optical cable, and comprising: a connector housing including a latch element, the connector housing being configured to be reversibly inserted into a connector receptable of an optical module having an optical transceiver; a connector boot connected to the connector housing and disposed around a part of the optical cable; and a radio-frequency (RF) electromagnetic (EM) radiation absorbing sleeve disposed at least partially over the connector boot, and including RF EM radiation absorbing material configured to absorb RF EM interference generated by the optical module. ### Claim 13 (depends on 12) The apparatus according to claim 12, wherein the RF EM radiation absorbing material has at least one of: a relative permittivity loss coefficient greater than 0.25; and a relative permeability loss coefficient greater than 0.25 at a frequency of the RF EM interference generated by the optical module. ### Claim 14 (depends on 12) The apparatus according to claim 12, wherein the RF EM radiation absorbing material of the RF EM radiation absorbing sleeve comprises a plastic or an elastomeric material mixed with an RF EM absorber. ### Claim 15 (depends on 14) The apparatus according to claim 14, wherein the RF EM absorber is selected from carbonyl iron or carbon powder. ### Claim 16 (depends on 12) The apparatus according to claim 12, wherein the RF EM radiation absorbing sleeve is disposed at least partially over the connector boot and at least partially over the connector housing. ### Claim 17 (depends on 16) The apparatus according to claim 16, wherein the RF EM radiation absorbing sleeve includes a flexible region, which covers the latch element, so as to enable actuation of the latch element via depressing the flexible region of the RF EM radiation absorbing sleeve. ### Claim 18 (depends on 16) The apparatus according to claim 16, wherein at least part of the connector housing is formed from RF EM radiation absorbing material. ### Claim 19 (depends on 16) The apparatus according to claim 16, wherein at least 1 mm3 of the connector housing is formed from RF EM radiation absorbing material. ### Claim 20 (depends on 19) The apparatus according to claim 19, wherein the RF EM radiation absorbing material forming at least 1 mm3 of the connector housing comprises a plastic or elastomeric material mixed with an RF EM absorber. ### Claim 21 (depends on 20) The apparatus according to claim 20, wherein the RF EM absorber is selected from carbonyl iron or carbon powder.