Optical Power Meter a Wɔpaw: Paw Nhyehyɛe a Ɛfa Asorɔkye Tenten, Tumi Ntam, ne Nkabom Ho

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Ɔberɛfɛw da 20, afe 2021

Anamɔn a edi kan wɔ OPM a wobɛpaw mu no nyɛ sɛ wode specifications bɛtoto ho — ɛyɛ sɛ wobɛte wavelength a wo fiber systems no yɛ adwuma ase. Nhyehyɛe ahorow de asorɔkye tenten ahorow di dwuma, na OPM calibration curves ahorow no gu ahorow sɛnea ɛfata. Sɛ wode asorɔkye tenten a ɛnteɛ di dwuma档位 a, ɛma akenkan kɔ fam 10% kosi 20%.

Nea edi kan no, Ma emu Da hɔ: Asorɔkye Tenten Bɛn na Wo Fiber System De Di Dwuma

Anamɔn a edi kan wɔ OPM a wobɛpaw mu no nyɛ sɛ wode specifications bɛtoto ho — ɛyɛ sɛ wobɛte wavelength a wo fiber systems no yɛ adwuma ase. Nhyehyɛe ahorow de asorɔkye tenten ahorow di dwuma, na OPM calibration curves ahorow no gu ahorow sɛnea ɛfata. Sɛ wode asorɔkye tenten a ɛnteɛ di dwuma档位 a, ɛma akenkan kɔ fam 10% kosi 20%.

Asorɔkye tenten a ɛtaa ba wɔ nkitahodi nhyehyɛe mu ne 1310nm ne 1550nm (single-mode fiber low-loss windows) ne 850nm (multimode fiber). Data centers de 850nm VCSEL sources di dwuma kɛse ma bere tiaa mu nkrasɛm. PV afifide fiber nkitahodi nkitahodi ahorow taa de 1310nm di dwuma. Sɛ DWDM (dense wavelength division multiplexing) nhyehyɛe nso hia sɔhwɛ a, ɛho hia sɛ wɔde 1625nm wavelength档位 — wɔfrɛ 1625nm ‘out-of-band wavelength’ na wɔde sɔ EDFA adwumayɛ hwɛ wɔ DWDM nhyehyɛe mu a wontwa ɔsom mu.

PK56A series no boa asorɔkye tenten nhyehyɛe ason a ɛkata 850nm, 1310nm, 1490nm, 1550nm, 1610nm, 1625nm, ne nkitahodi asorɔkye tenten afoforo so. Wei kyerɛ sɛ ɛmfa ho asorɔkye tenten bɛn na wo fiber nhyehyɛe no de di dwuma no, PK56A betumi ne no ahyia tẽẽ — ɛho nhia sɛ wususuw nneɛma foforo a ɛfa paw ho.

Tumi a Ɛwɔ Hɔ: Ɛnyɛ Bere nyinaa na Kɛse Yɛ Ye

OPM kwan no na ɛkyerɛ sɛnea hann sɛnkyerɛnne bi mu yɛ den a ebetumi asusuw. Ɔkwan a ɛyɛ ketewaa dodo no de asiane ba sɛ ɛbɛsɛe detector no denam hann a ano yɛ den so; range a ɛsõ dodo ntumi nsusuw hann a ɛyɛ mmerɛw. Nanso ɛnyɛ bere nyinaa na range yɛ ‘dodow a ɛsõ no ye’ — mfiri a ɛwɔ ranges akɛse no taa yɛ bulkier, ne bo yɛ den, na ebia ɛwɔ precision a ɛba fam wɔ low-power awiei sɛ wɔde toto range-matched devices ho a.

Field sɔhwɛ optical tumi taa span -70dBm kosi +10dBm. -70dBm ne nkate anohyeto a ɛba fam a ɛwɔ agyefo dodow no ara mu; +10dBm ne hann fibea dodow no ara a ɛde ba kɛse. PK56A series range no kata -70dBm kɔ +10dBm, ɛne saa range yi hyia pɛpɛɛpɛ.

Sɛ optical signals a ɛkorɔn hia sɔhwɛ (te sɛ optical amplifier output, a ebetumi adu +20dBm) a, optical attenuator foforo ho hia de abɔ OPM detector no ho ban. PK56A series no detachable optical attenuator adapter, trɛw kwan no mu kɔ +20dBm bere a ɛho hia.

Red Light Fibea Tumi: Paw Wɔ 2mW, 5mW, 10mW, ne 20mW mu

Nsonsonoe titiriw a ɛda PK56B so denam PK56E so ne hann kɔkɔɔ fibea tumi — 10mW, 2mW, 5mW, ne 20mW. Red light source power na ɛkyerɛ baabi a ebetumi ahu ne sɛnea ɛyɛ adwuma yiye wɔ ambient light ase.

Hann kɔkɔɔ fibea no dwumadi ne sɛ ɛde hann kɔkɔɔ a wotumi hu (650nm) bɛhyɛ nhama no mu na wahwɛ baabi a hann no pue de ahu mmeae a abubu. Tumi a ɛkorɔn kyerɛ sɛ wotumi hu kwan tenten na wotumi hu ade yiye wɔ hann a ano yɛ den a atwa ho ahyia ase. 2mW (PK56C) fata ma kwan tiaa (1-2km) dan mu fiber jumper sɔhwɛ, a ahoɔden a wɔde di dwuma a ɛba fam koraa, battery nkwa tenten, ne bo a ɛba fam sen biara. 5mW (PK56D) ne nea ɛkari pɛ a wɔpaw, a ɛfata ma afuw mu sɔhwɛ dodow no ara a ɛwɔ akyirikyiri. 10mW (PK56B) yɛ ma akyirikyiri-akyiri (3-5km) fiber link ɔhaw ahorow ano aduru. 20mW (PK56E) yɛ adwumayɛfo grade, ɛfata ma akyirikyiri (5km +) trunk fiber sɔhwɛ, ɛda so ara da adi pefee mpo wɔ abɔnten tebea horow a ɛyɛ hann mu.

Mfa anifurae nni tumi a ɛkorɔn akyi bere a worepaw no. Ebia kanea kɔkɔɔ a ɛyɛ 20mW no bɛhyerɛn dodo sɛ wɔde bedi dwuma wɔ dan mu, na ɛhwehwɛ sɛ wɔbɔ aniwa ho ban. Na kanea kɔkɔɔ a ahoɔden wom kɛse no di ahoɔden pii, na ɛma batere nkwa nna yɛ tiaa. Paw kanea kɔkɔɔ ahoɔden a egyina fiber kwan tenten a ɛsɛ sɛ wosɔ hwɛ ankasa so.

Integrated vs. Separate: Nea enti a All-in-One Ye Ma Afuw mu Adwuma

OPM ne kanea kɔkɔɔ fibea no betumi ayɛ biako (ne nyinaa wɔ biako mu) anaasɛ wɔatew mu — OPM a egyina hɔ ma ne kanea kɔkɔɔ kyerɛwdua a ɛyɛ soronko. Ɔkwan biara wɔ mfaso ne ɔhaw ahorow, nanso wɔ afuw mu sɔhwɛ tebea horow mu no, ne nyinaa wɔ biako mu no wɔ mfaso horow a ɛda adi pefee.

Nea edi kan: nea wotumi fa so. All-in-one yɛ mfiri biako; separate kyerɛ anyɛ yiye koraa no abien. Field engineers taa tu kɔ sɔhwɛ mmeae ntam — efi base station shelters so kosi fiber distribution frames so, fi data center Zone A kosi Zone B — na sɛ wɔsoa mfiri biako a ɛba fam a, ɛkyerɛ sɛ adesoa biako sua.

Nea ɛto so abien: adwumayɛ mu mmɔdenbɔ. All-in-one nhwehwɛ sɛ wosakra OPM ne kanea kɔkɔɔ pen modes ntam — button biako dannan tumi sɔhwɛ ne kanea kɔkɔɔ mode ntam. Wɔ fiber link ho haw ano aduru mu no, standard flow ne: sɔ tumi hwɛ (hwɛ sɛ link no yɛ normal) → dan kɔ red light mode (hwehwɛ break no) → siesie break no → san sɔ tumi hwɛ (si so dua sɛ woasiesie). Sɛ wɔde mfiri ahorow a ɛsono emu biara di dwuma a, saa nsu a ɛsen yi hwehwɛ sɛ wɔdannan kɔ anim ne akyi wɔ mfiri abien ntam, anyɛ yiye koraa no, ɛtew sɛnea ɛyɛ adwuma yiye no so fã.

Nea ɛto so abiɛsa: ɛka a wɔbɔ. Bere a biribiara a ɛwɔ biako mu no bo boro OPM a egyina hɔ ma ne ho, na wɔde kanea kɔkɔɔ kyerɛwdua a ɛyɛ soronko bo ka ho no, mpɛn pii no, nea ɛwɔ biako mu no bo yɛ mmerɛw. Na esiane sɛ batere biako pɛ na ɛsɛ sɛ wohwɛ so nti, charger biako a ɛsua a ɛsɛ sɛ wode kɔ.

Nea ɛto so anan: data nkitahodi. Wobetumi de nsɛm a wɔakyerɛw ato hɔ bere a wɔreyɛ tumi sɔhwɛ wɔ all-in-one so no abata kanea kɔkɔɔ sɔhwɛ aba wɔ sɔhwɛ kyerɛwtohɔ koro no ara mu. Wɔakyekyɛ mfiri data a ɛtetew mu, a ɛhwehwɛ sɛ wɔde nsa yɛ pɛpɛɛpɛ bere a wɔayɛ nhwehwɛmu akyiri yi — mfomso fibea.

Afotu a Mfaso: Efi Adetɔ so Kosi Nnwuma a Wɔde Di Dwuma So

Sɛ wɔpaw wie a, adetɔ ne deployment fã ahorow no wɔ n’ankasa afiri. Sɛ woretɔ a, mfa bo nko ara ntoto ho da — bisa demo unit ma on-site validation. Nsonsonoe a ɛda wɔn a wɔyɛ nneɛma ntam wɔ wiase ankasa mu dwumadie mu no betumi ayɛ kɛseɛ koraa asen nsonsonoeɛ a ɛwɔ spec krataa no so: interface adamfofa, fiber adapter compatibility, red light source brightness — eyinom mu biara mpue wɔ spec sheets so nanso ne nyinaa nya dwumadie so nkɛntɛnsoɔ tẽẽ.

Sɛ nnwinnade no ba a, nkyekyɛ mma afuw mu adwumayɛfo tẽẽ. Ma mfiridwuma sohwɛfo no nsɔ nhwɛ dapɛn biako, na onsi so dua sɛ ɛne beae no nhama ahorow a wɔtaa de di dwuma ne nneɛma a atwa yɛn ho ahyia tebea horow no yɛ adwuma yiye, afei ɔnyɛ adwumayɛfo ntetee ho nhyehyɛe. Ɛsɛ sɛ ntetee no fa: sɔhwɛ nhyehyɛe a ɛteɛ (asorɔkye tenten a wɔpaw → awiei anim nhwehwɛmu → tumi sɔhwɛ → adehwere ho akontaabu → kanea kɔkɔɔ a wɔde di ho adanse), data a wɔkyere gu kasɛt so nneyɛe, nea efi mu ba nkyerɛase gyinapɛn (nea ɛyɛ PASS, KƆBƆ, ne FAIL), ne nnwinnade titiriw a wɔhwɛ so.

Data sohwɛ nhyehyɛe a wɔde besi hɔ no ho hia saa ara. Sɔhwɛ biara akyi no, ɛsɛ sɛ data hyɛn engineering management system no mu, a wɔde link nɔma ne bere nnidiso nnidiso akora so. Yɛ fiber link akwahosan ho amanneɛbɔ a ɛba bosome mmiɛnsa biara a ɛkyerɛ nkitahodi ahorow a ɛne adehwere a ɛnteɛ nyinaa, a wɔahyehyɛ no sɛnea ntɛmpɛ yɛ ma nsiesie nhyehyɛe. Eyi dan fiber siesie fi reactive repair kɔ proactive early warning — ɔkwan biako pɛ a sɔhwɛ data de mfaso ma ampa. View the PV Test Instruments Collection