Photonic Packet Emitter — Prototype 01

Abstract

The emitter maintains a continuous optical frequency comb as a spectral reservoir. A packet gate redirects a time-bounded slice into a spectral fan-out. Each frequency is then independently subjected to controlled optical division: useful power is passed into the packet path while excess power is diverted into a monitored reject path. The divider therefore performs frequency removal, raw-power levelling and N-state shaping as one operation. The shaped carriers are recombined and delivered to B0 transport.

Prototype status: conceptually complete. Remaining work concerns implementation, calibration, receiver design and numerical parameter selection rather than a missing emitter operation.

Transport alphabet

Transport does not attempt to preserve arbitrary analogue amplitude. Photon flux is classified into four deliberately broad valid bands separated by invalid guard regions.

N0–N3 are bands, not exact point values. The transmitter aims toward the upper useful region of each band so ordinary downstream attenuation can occur before a state reaches its lower guard boundary. Values falling in guard regions are faults rather than silently reclassified symbols.

Pmin anchors absence. Pmax is a normalized raw-power reference, not N3. The exact N3/Pmax ratio and band boundaries remain unresolved.

Spectral reservoir

A frequency-comb laser operates continuously and maintains the supported frequency lattice. The reservoir may have an uneven spectral envelope. Flatness is desirable for efficiency but is not a functional requirement.

The reservoir monitor identifies the weakest certified comb tooth and the source is attuned so that this lowest raw level establishes the normalized reference:

Other raw teeth may exceed this reference. The essential condition is that every certified frequency contains enough optical power to form any valid N-state. The reservoir is monitored before packet ejection; an unhealthy comb therefore need not produce a packet.

Raw packet extraction

The comb is continuous. A packet is created temporally, not by starting and stopping the laser. Existing controlled output leakage is normally routed to monitoring or sink. For interval T the packet gate redirects that stream into the packet former.

Because output coupling can remain substantially unchanged, packet creation need not impose a large transient extraction event on the comb cavity.

Packet former

COMB LASER
    │
    ▼
PACKET GATE ── interval T
    │
    ▼
SPECTRAL FAN-OUT
    │
    ├─ f1 ─ VARIABLE DIVIDER ─ useful ─┐
    │                    └──── reject   │
    ├─ f2 ─ VARIABLE DIVIDER ─ useful ─┤
    │                    └──── reject   │
    ├─ …                               │
    └─ fx ─ VARIABLE DIVIDER ─ useful ─┤
                         └──── reject   │
                                       ▼
                                SPECTRAL MERGE
                                       │
                                       ▼
                                  B0 TRANSPORT

Earlier development treated frequency removal, P-levelling and N-shaping as three stages. Prototype 01 recognizes that all three are instances of the same frequency-addressed division operation.

For each raw carrier (fi, Pi), the packet instruction requests qi ∈ {∅, N0, N1, N2, N3}. The divider passes sufficient power to place the useful output safely inside the requested band and diverts the remainder. For ∅ the useful output tends to zero and the carrier is wholly rejected.

Reject-side verification

The useful packet is not intentionally measured after formation. Reservoir monitoring provides the incoming raw state; the divider's reject branch is measured instead. In the idealized balance:

Real hardware adds insertion, scattering and absorption losses, but exact conservation is unnecessary. The system only needs sufficient calibration to establish that the inferred useful remainder lies comfortably within the requested N-band.

Design rule: measure the rejection, not the packet.

This exploits the deliberate tolerance of the N alphabet. The emitter need not produce an exact photon flux; it must reliably land inside a valid band and away from its guard regions.

Reference architecture

External technical precedent

Contemporary work establishes the individual mechanisms without establishing this complete architecture. Quantum-dot semiconductor comb lasers have demonstrated 100 GHz-spaced multi-line output in sub-millimetre devices; broadband QD comb research demonstrates flat-topped multi-frequency emission; NIST has demonstrated line-by-line control of more than 600 comb lines; and integrated Mach–Zehnder/MMI variable optical attenuators demonstrate compact continuously controllable optical rejection. These are retained as factual references in the Zenovka Archive.

The prototype extrapolates their combination and scale. In particular, the eventual ~540-position, ~100-GHz Station lattice across a broad silica window remains a Model target rather than a demonstrated single-device capability.

Unresolved engineering parameters

Prototype 01 intentionally leaves numerical implementation open: absolute photon flux; N-band boundaries and guard widths; N3/Pmax ratio; packet duration and cadence; certified comb bandwidth; exact fan-out technology; variable-divider technology and response speed; parasitic loss model; calibration cadence; polarization handling; integrated versus bulk implementation; and receiver classification thresholds.

These questions may alter component implementation. They do not presently require another functional stage in the emitter.

Prototype invariant

Continuous comb → temporal slice → frequency-resolved controlled rejection → quantised spectral packet.
The architecture does not solve analogue optical amplitude by preserving it. It makes amplitude tolerant enough that it does not need to be preserved precisely.

Research references

The Zenovka Archive preserves the factual precedents used to test this prototype: 700.50:10:01 and 700.50:10:02 for quantum-dot comb sources, 700.50:20:01 for line-by-line comb control, and 700.50:30:01 for variable optical attenuation.

Laboratory continuity

Designation restored: this Prototype 01 paper was committed on 6 October 2026 as Lab 05, after the September production directory had independently assigned L05 to Rotating Ring Shear. On 20 October 2026 the mechanics work moved intact to Lab 10, leaving the L05 designation consistent with this paper and its Archive records.